IidaInOuterSpace

Mina jumped up and yelled, "Kirishima! I've known him for years!" All the other girls jumped slightly and Shiozaki tried calming Mina down, "Iida would be a great brother to have," she responded, gently punching Mina in the shoulder. Kendo nodded her head, "I would have to agree with Ibara, he is brother material." Tsuyu thought for a moment before speaking up, "Definitely Tokoyami, he'd be so sweet as a brother, plus Dark Shadow is brother like as well." Uraraka giggled softly, "Either Deku or Todoroki-Kun, they are both really sweet once you get to know them." Jiro shook her head, "Honestly I think I'd like Kaminari..." Mina pocked her cheek and giggled, "Then you couldn't date him," she teased, causing Momo to take Jiro in her arms, "Mine!" Hagakure sighed, "Before this turns to hell, I'd like to say Ojiro, he'd be such an amazing brother..." Momo thought for a few minutes before agreeing on Iida, blushing softly. Alec smiled shyly and looked up, "Shinso, I want Shinso as an overprotective brother, he's so much like me, we'd get on so well."

So to sum this up:

Kendo: Tenya Iida 

Shiozaki: Tenya Iida 

Mina: Ejiro Kirishima 

Tsuyu: Fumikage Tokoyami

Uraraka: Izuku Midoriya or Shōto Todoroki 

Jiro: Denki Kaminari 

Hagakure: Mashiaro Ojiro 

Momo: Tenya Iida 

Alec: Hitoshi Shinso