Conor McGregor hasn't fought for a while.

But, he's still Conor McGregor.

So, even though it sometimes looks like his prolific MMA career has come to an end—given he hasn't fought in more than three years and hasn't won a fight in more than four-and-a-half years—the mere mention of his name sets matchmakers to drooling.

It's true with Dana White in the UFC and it would be true of a slew of boxing promoters if the Irishman decided to take his act back to the ring for the first time since 2017.

The B/R combat team is not immune to the buzz provided by the high-profile spokesperson for Proper No. Twelve Irish Whiskey either, which prompted an impromptu gathering to compile a list of the best foes available if he eschews the cage and chooses to lace up the gloves.

We broke it down into who it could and probably would be, along with who we'd wish for and the prospective foe whose selection might test the limits of the modern internet.

Take a look at what we came up with and drop a thought of your own in the comments.

Who It Could Be: Floyd Mayweather Jr.

The seventh anniversary has come and gone, which means we have the itch to see it again.

McGregor and heel-ish boxing contemporary Floyd Mayweather Jr. locked horns in an unprecedented moneymaking spectacle on August 26, 2017, which allowed Notorious to rake in a cool $30 million for nine-plus rounds of work while his opponent cashed out for $100 million while leveling up his own pro record to a pristine 50-0.

Now 47 years old, Mayweather has spent recent time feathering his financial nest with exhibition matches, including an eight-rounder with the grandson of former New York crime boss John Gotti last weekend that added another eight figures to his bottom line.

McGregor, meanwhile, hasn't seen the inside of a UFC octagon in more than three years and still carries a torch for another go-round with Mayweather, whom he suggested has so far reneged on a return MMA bout promised in the aftermath of the first one in the ring.

"I would go against him in another boxing bout, I'd like another crack at it," McGregor told Fox Sports. "I can always say it is another boxing fight and then just bend the rules a little bit when we're in there maybe."

Encore, encore.

Who It Probably Will Be: KSI

We can only hope it doesn't come to this.

Though it's perfectly reasonable that McGregor won't choose to step back into the ring with a world-class contender, there's a limit to how far it ought to go in the other direction, too.

KSI would be that limit.

The 31-year-old Englishman qualifies as a low-rent Jake Paul thanks to his prolific reach on social media—13 million Instagram followers—and a five-fight ring career in which he's faced the dubious likes of Paul's older brother, Logan, and Tyson Fury's half-brother, Tommy, who's the only man to defeat Jake in a boxing match.

McGregor and KSI had one another's names in their mouths last year when the Irishman challenged the influencer, whose birth name is Olajide Olayinka Williams, to a bare-knuckle scrap under the banner of the company in which he holds an ownership stake.

He took to social media (in a since-deleted post) after KSI's match with Fury last fall and suggested a head-to-head encounter would be "an exciting fight," then reiterated this spring when he told Xcellent MMA: "It’s just like another little world, isn’t it? I’m open for it, I’ll never say no.”

Yuck.

Who We Wish It Would Be: Manny Pacquiao

Mayweather and Manny Pacquiao got together in the biggest "traditional" boxing match (so far) of the 21st century in 2015, two years before the American's duel with McGregor.

So, if the rematch with Money doesn't pan out, how about the Pac Man?

Pacquiao fought seven times in his own post-Mayweather ring run, retiring after a desultory loss to Yordenis Ugas three years ago. Now 45, he followed Mayweather's lead with an exhibition bout against Japanese kickboxer Rukiya Anpo in late July.

He didn't look so good in the hastily arranged return—billed as a prelude to a full-scale comeback that would put him against interim 147-pound champ Mario Barrios—so it'd make perfect sense to scrap the original plan and chase a bigger bag with a foe like McGregor, who would guarantee both a level of interest and a payout that Barrios never could.

There's some additional heat, too, thanks to a recent court verdict in which a multi-million dollar judgement in favor of McGregor's promoter against Pacquaio for breach of contract while setting up a 2020 fight was reversed in the Filipino's favor.

Pacquiao's agent, Sean Gibbons, is all for moving from the courtroom to the ring.

"That's something that will be sensational in Saudi Arabia, let's go," he told Boxing Scene. "It will be a good place to do it. It's really simple. His Excellency Turki Alalshikh, loves big events, and he's putting on the best events. It's a very intriguing and fun fight bringing two of the biggest names together in combat sports."

What Would Break the Internet: Jake Paul

C'mon, does anyone really want to see a 58-year-old Mike Tyson fighting?

OK, we're sure some people do. And the former heavyweight world champion's accountants are probably among them.

But while it'd surely cost him a few bucks, we'd suggest Iron Mike steps aside, protects his generational legacy and leaves the fight game's modern silliness to the professionals.

And in this case, that means McGregor and Jake Paul.

Because there's simply no opponent for McGregor—short of him securing a date with Tyson himself—who'd generate more prurient cartoon interest than the "Problem Child."

Paul recently upped his pro ring record to 10-1 with a sixth-round stoppage of McGregor's former UFC contemporary Mike Perry, a result that prompted the Irishman to take to social media to blast the YouTuber, who's been a frequent target of his over the years.

McGregor labeled Paul "the biggest p--sbag I have ever seen in my life," a tirade that prompted a predictable post-fight response from Paul suggesting McGregor was unwilling to step through the ropes and face him because he was afraid.

"He can talk all the f--k he wants," Paul said, "but the 'Notorious' MMA is scared of Jake Joseph Paul from Disney Channel. And I put that on my mama."

Need we say more?