He wants GSP - he was saying last night they should hold the fight in Africa and donate all money from the fight to charity (he spent some time in the last year in Africa digging wells)
GSP has said he'd fight Khabib but I doubt he makes 155, and Khabib has said he's got no interest in going up to 170.
Beyond T-Ferg there's no one that really stands out. Max would've been interesting, considering they almost fought before, but Dustin handled him pretty handily so he's nowhere near that fight.
Prime Aldo would've been incredible as Also has arguably the best TDD in the sport, however (again) he's nowhere near a title fight on his current skid.
Hell, maybe Conor comes back and starches the winner of Gathje/Cowboy and they do end up doing a rematch in Moscow.