for free? I’m not as familiar, but my best guess would be for you to see if you could check out some chinese learning textbooks from the library. Chinese Zero to Hero has a free pronunciation course. I’m a huge fan of their HSK courses as well but those are paid. they get bonus points for the cultural revolution imagery in the courses. Hello Chinese is a lot better than Duolingo IMO, and there’s a free version of the app. Pleco is a great free dictionary resource. Anki is another great free resource for drilling vocab. I think DuChinese has some good stuff for free as well. Best of luck! It’s a long road. I know this anathema to lemmygrad, but the chinese language subreddit has really good posts about this sort of thing as well.