There are currently thirty-six outfits available.

From Naruto:
Hidan
Hidan (Curse)
Suigetsu
Suigetsu (Team Taka)
Suigetsu (Boruto)
Minato Namikaze
Madara
Hashirama
Itachi (Akatsuki)
Sasuke (Hebi)
Sasuke (Boruto, Cloaked)
Sasuke (Boruto, Cloakless)
Naruto (Shippuden)
Jiraiya
Deidara
Boruto
Mitsuki
Kisame
Kakashi

From My Hero Academia:
Toshinori Yagi
Bakugo Katsuki
Midoriya Izuku
Shoto Todoroki

From Goblin Slayer:
Goblin Slayer


From Fortnite:
Drift
Driftwalker

From FFXIV:
T'okyo Senriren

From Demon Slayer:
Rengoku (Haori)
Rengoku (No Haori)
Akaza

Weapons:
Rengoku's Nichirin Katana (currently does not work for some reason, it is invisible.)

Misc:
Melvin Souls
Melvin Souls (Vampiric Transformation)
Victor Feng
Bjorne Bjergsen
Vladisauce Strauss
Dominic Fyres