As for Alios, I think none of them would even be friends if there's nothing to bond them together (like *wink* neighbors *wink*, a friend of a friend,... Note: not even classmates would do if they don't approach Alios aggressively like Qiu & Tama did), that's just how they are. So I'll just tell you what Alios thinks of them & what ifs.
Runie (could be friends): They're comfortable with him, low-key have some chance of being friends if they're in the same class. Would go "Is it him getting in some weird trouble?" in their head if he ever got dragged around by some horses and flew up a tree? They like his hair and whatever he is wearing outside of his clothes, by the way :)
Damian (could not): They would never be friends, I guess. If they're 'a friend of a friend', they would stay like that forever, just like how Baxter and Ren were. As I said, Alios is super distant when it comes to friends rather than being polite.
Sonia (if they ever are friends): Do you know Tamarack? Yes, that patable head. Even their energy level match, too. If they ever become friends, Alios would treat her like their little sister, always looking out for her first in a room full of people (including their romantic partner/ crush).
Qinru (could not): The reason is a bit personal, tbh (Alios is my persona, after all,, haha). She's too pretty, that would damage their eyesight (in imagination) if they meet her every day, one Qiu is enough...!
Apologize if I got any of their pronouns wrong ;)