Uh…Leo.
I’m not into boys, but Leo is the best person to have an intellectual conversation with. People always forget he’s really smart. He has humor (which I like), and is overall a nice person.
Percy couldn’t give me a really intellectual conversation
Nico is too dark and edgy
Jason is so bland and boring I would probably fall asleep.
I don’t know your friend very well
And I haven’t read ToA yet, but Lester would probably be another solid choice.