"Anyones time" as in his opponent and/or fans? Olivera, could be interesting, would still like to see Tferg just because, and arguably Connor was one of his most competitive fights.
But not sure any of those would be worth Khabibs time as a last fight, aside from Connor, but I dont see that happening. It seems like he wanted a superfight for his last one, but besides GSP, which wont happen, Im not sure whos left. A "superfight" with Usman would make sense but he wouldnt do that either. Khabib/Colby would be bananas