I've played with the idea of a multi-book fantasy story for years, where a female and male protagonists' lives intertwine with one another, the series running from 12-22 years old for them.
There will probably be a time for them where they will consider each other as a romantic possibility, as with a lot of boy-girl relationships, implied moments where they're thinking about it, but I haven't decided yet whether to pair them together in the end.
It's not the focus of the story, but their relationship (in a non-romantic sense) is one of the, if not, the most important relationship in the series and I would really like to do their relationship (their friendship, their professional relationship with one another) justice. It's a challenge I want to pursue, to write them without romance taking over the relationship.
Any tips or examples of fiction where this is shown well?