Others have posted some good resources like Lightnote which I also recommend as an introduction. The only one I've gone all the way through, though, has been Audible Genius (https://www.audiblegenius.com/). It's similarly hands-on and only an introduction to the very basics (more material coming at some point), but it will get you comfortable putting drum, bass, and lead together for a simple progression over a single root note. Its primary focus is training your ear to recognize rhythm and intervals and understand them at an intuitive rather than theoretical level (although the theoretical stuff will make more sense once you have the basic intuitive sense).
Although it is billed on a monthly basis which I'm not a fan of, I comfortably completed all the current material in under a month so I found the value very good and plan to resubscribe once more material is released.
(Tangentially, Audible Genius is from the same guy as Syntorial, which is a very well-regarded hands-on course in subtractive synthesizer programming which I also recommend if that's of interest, but that's not directly related to music theory)
From there, there are tons of other courses that discuss things like chord progressions which you can combine with this experience to be more deliberate with your melody and harmony to communicate what you're trying to communicate with your music.
The Signals Music Studio Youtube channel in particular I find to be approachable for a theory novice but also inspiring to try new things and stretch beyond the basics (for instance, dabbling in modes).
Although it is billed on a monthly basis which I'm not a fan of, I comfortably completed all the current material in under a month so I found the value very good and plan to resubscribe once more material is released.
(Tangentially, Audible Genius is from the same guy as Syntorial, which is a very well-regarded hands-on course in subtractive synthesizer programming which I also recommend if that's of interest, but that's not directly related to music theory)
From there, there are tons of other courses that discuss things like chord progressions which you can combine with this experience to be more deliberate with your melody and harmony to communicate what you're trying to communicate with your music.
The Signals Music Studio Youtube channel in particular I find to be approachable for a theory novice but also inspiring to try new things and stretch beyond the basics (for instance, dabbling in modes).