1. Beastification
He can manually chose how much his body is animalistic with more being stronger(he usually keeps ears and tail for aesthetics and for a decent power boost), he can also do individual parts of his body example being an arm.
2. Nen/Haki
its a fusion using both as principle for a sort of aura ability, nen has been stripped of hatsu(for balancing reasons don't want to complicate it more than I'm going to) so he can manipulate aura, can make constructs with great effort, and has the same abilities that Nen and Haki do(including observation and conquerors Haki).
3.? maybe more if someone comes up with a cool idea
Harem:
(Spoiler one of this dudes main missions is to bang chicks, so this will be added to as it goes on)
Miriko
Nejire
Jiro
Toru
Momo
Kendo
Mt.lady
and more( I left some because im too lazy to add more till I see they are wanted.)