this was the first thing that came to mind when I saw that picture:

Smash bros spirits mode Persona 5 edition
Ann: Peach or Zero suit samus peach because she was the first one I thought of

Ryuji: K rool because of his persona captain kidd or Sonic

Morgana: Incineroar because cat

Yusuke: Fox because of his code name alternatively blue inkling boy or Bowser jr

Makoto: Robin I don't know why Robin came to mind before I looked at the smash roster for reference but it feels right alternatively Zelda

Futaba: Some people say Inkling girl but that joke is getting old so Palutena because of her role in the phantom thieves

Igor: Gannondorf mostly because of the nose alternatively k rool because of his eyes