I'mma say this only once cause I'm lazy.
Aoyama: Sparkling!✨ (LN: ✨)
Mina: Alien Queen UwU (LN: 👽)
Tsuyu: Gay Frogs (LN: 🐸)
Iida: Sonic but Smart (LN: 👓)
Uraraka: Gayravity (LN: ⭐)
Ojiro: Tails (LN: 🦊)
Kaminari: Zap Zap Bish (LN: ⚡)
Kirishima: Hard Boi (LN: 🗿)
Kouda: Baby (LN: 🐾)
Satou: Sugar Daddy (LN: 🍰)
Shouji: Octopussy (LN: 🐙)
Jirou: Music Mama (LN: 🎧)
Sero: Phil Swift (LN: 📼)
Tokoyami: Emo bird (LN: 🦇)
Todoroki: Hot n' cold but gay (LN: ❄🔥)
Hagakure: John Cena (LN: 🙈)
Bakugou: Boom Boom Man (LN: 💥)
Izuku: Izuwu Midoriowo (LN: 🐰)
M*neta: Expelled.
Momo: MOMo (LN: 📚)
Shinsou: What's sleep? (LN: 🛏)
Teachers:
Aizawa: Naptime (LN: 💤)
Present Mic: ScReAm (LN: 🎤)
Midnight: Dat grill (LN: ☢)
All Might: Dad Might (LN: 💪)
Endeavor: Flame Man (LN: 🔥🗑)
Nezu: Mouse (LN: 🧠)
Villains:
Toga: Stabby Bitch (LN: 🔪)
Dabi: Burnt Chicken Nugget (LN: 🔥🔥)
Mr. Compress: Magic Man (LN: 🔵)
Shigaraki: Mr. Handyman (LN: ✋)
Kurogiri: Mommagiri (LN: 👨👧👦)
Stain: Blood Hungry (LN: 💉)
????: Senpai~ (LN: ✂)
LN: Lazy name (AKA THE NAME I USE CUZ I'M LAZY)