So this isn't quite about Japanese study, but I figure this would be the best place to ask. I'm interested in language laddering from Japanese to learn Korean, but I have no idea what textbook series would be good for this, or if textbooks are even the way to go. I started self-studying Japanese with just vocab and very basic grammar study, but it didn't really kick off until I took classes and learned grammar points through textbooks that made communicating easier and thus things that build off from there.
The main things I would like to find (all in Japanese): Quick way to learn the Hangul and pronunciation, Good resource for vocab study (probably Anki tbh), and a good resource for learning grammar points.
For reference I'm at about N3 level Japanese, working through the first Quartet book. It will be some time before I actually intend to start learning Korean (probably January). I don't ask that you take this into account for what resources you recommend, but if it does make a significant difference I figure I'd mention it
by Spook404