These are things i think would be cool or interesting to see.
Inuzuka-
Clan Feature the longer u play the bigger ur dog gets, in example like how the old nng had 1 hour made u a player or whatever
Clan Feature Maybe give the inuzukas the choice between dogs each dog have a special ability (like enhanced smell which would give u the coordinates of everyone in a certain radius say like the size of ur vilage)
Clan Passive It would put u into a beast like state which would unequip any weapons and u basically get hardened fingers nails that like reduces ur dmg by 10-15% and does damage over time and causes an effect that stops regening
Akimichi-
Clan Passive Arm Expansion Makes your arms bigger and gives u a 2 tiles melee punch
Clan Jutsu Body Expansion makes u stand still but reflects projectiles or u could take reduced dmg and reflect projectiles (This doesnt work for every jutsu)
Clan jutsu Leg Expansion slams your foot into the ground doing area of effect dmg
Clan Passive it would toggle running off if u max the passive when the person used leg expansion (Give it a percent chance)
Umm thats all for now im not done ill update with more later