Active Fighters you feel can someday make good-great trainers?

What are some active fighters you feel would make great trainers here is my list:

Hopkins - The knowledge this guy has for the sports is insane its no wonder you always see Danny Garcia with him he seems to give good advice there was this one video where he was explaining movements to some UFC fighter and he seemed so detailed on it

Malinaggi - Listening to him do commentary leads me to believe he can pull it off like bhop seems very detailed to his approach

What are you guys thoughts on who would make fine trainers