I don't think there are many divisions currently in good shape. Let's see...
Featherweight is fine, possibly with a good future.
Lightweight is a little less so, but still okay. Although there are older fighters on the loose and a lot of shitty cowards.
WW isn't bad either. It has a good future.
And... that would be it. The other divisions are either stagnant or simply don't have enough young talent.