You might want to give Rick Beato a try: https://rickbeato.com/
He does interesting YouTube videos on music topics, but also sells theory and ear-training courses online.
He does interesting YouTube videos on music topics, but also sells theory and ear-training courses online.
Something in his approach and the way my brain works just short circuit.
Signals Music Studio is also thought provoking for ideas (https://signalsmusicstudio.com/) ; check out his incremental approaches to writing with the Locrian mode.
I think I'm incorrectly assuming people want to take it past the basics when they say they want to learn music theory.