Okay I have a few students to throw at you!
First off I have
Griffin Holmes! He's a 10 year old boy who has a lot of animal related powers. His older brother is Nix Holmes (Who will be next on this list...) He's pretty happy go lucky but I was thinking maybe he could accidentally annoy Shay? IDK just thinking...
Next
Nix Holmes! He is Griffin's older brother and a high school junior (16 years old) and has healing powers. Nix is basically the exact opposite of his younger brother because he is super cynical and down all the time. He is also gay. Nix is very smart and wants to be a doctor. I was thinking maybe a study buddy for Ellyn?
Last but definitely not least I have
Tay Archer! (Don't tell her I put her last she'll murder me...) She is 15 and a major tomboy. She has a sentient handgun (Trauma) who gets on her case a lot for a variety of reasons... She's not a great influence so maybe Tay could be a bad influence for Maddie?