Depends. Fighting the best probably 3. If he is fighting bunch of no bodies I’d say he has 7 or 8 fights left.
This is baxin though. You go on until you get knocked the F out. Even then sometimes you still go on!
Szeremeta, Jermall Charlo(or Canelo) and a farewell fight in Kazakhstan. Triple G is an elite fighter that rarely looked beatable in his prime so now that he's old, of course he will be more vulnerable but he is still good enough.
GGG only looked old after he changed trainers. Im not sure his new trainer is right for him. He seems like he is a 70 % Golovkin right now with his style adjustment. Some of his training methods seem a little brutal for a 39 year old, pull ups with weights, pulling weights behind him while running, he could injure his back. I still don't see an official announcement for his next fight. It was supposed to be on Nov 21st on DAZN but for some reason their hasn't been been an official announcement. Maybe he has an injury.
Unless he gets in the ring soon, probably not more than a couple. Love to see him tame the young lion and get a third fight w/ Canelo.
39 is the age things start going down hill for fighters. Sure, you have the 1% or so that stay highly competitive into their 40's, but G doesn't seem to be that guy. A straight destroyer in his prime. Struck fear in the middleweight division for 5 years or so, many title defenses, great KO streak. The man has nothing to prove. Retire, and enjoy the fruits of your labor.
Don't see much benefit in continuing to fight unless he needs the money don't see another canelo fight being any better or more lucrative than the first 2 esp considering all the stuff going on with canelo and golden boy and dazn.