The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
There are tons of third party developer Leadership type or Leadership enhancement feats in Mongoose's Ultimate Feats and AEG's Feats. Some are very nice. Check out both books (I think AEG's feats has a slight edge).