Newbie: how to get more minions?

Hi! I’m new to the game. I’ve been leveling up a few different classes with my highest being lvl 48 at the moment.

I was wondering how I can get more minion options? I have the wolf pup, ship, and coeurl kitten but don’t know how to move forward. I see a lot of people with awesome minions! I heard treasure maps but I don’t know how to go about that.

Any help would be appreciated!