I don't have the game yet, so maybe this is stupidly obvious, but so far I haven't seen any information about a general Move Tutor, to teach moves to Pokemon that they can't learn any other way. It's been a thing for quite a few generations now, usually in the post-game areas, and it has been quite a significant resource for competitive battling. So much so that people look specifically for Pokemon from older generations, with access to specific Tutor moves.
Having checked a few of the Pokemon sites, I haven't seen any reference to one yet. And while I know that the Pokedex pages here on the database are still incomplete (the Egg Moves are suspiciously short lists in that regard) it seems strange for there to be no mention of it at all.