I use Lingvano but I paid for a subscription bc I’m really into it so it was worth it for me. There’s also one called ASL sign language that’s blue app with hands on it and it teaches you 2 new ones every day for free (last I checked). I learn as much as I can on yt as well, esp with ASL translations of songs I like bc then it’s easy practice
The thing with this is that the other person needs to know asl too to know what ur saying most of the time. Some signs are self explanatory but a lot aren’t. However I find that most ppl are interested in learning a few bc they think it’s cool- but not a lot will go try the effort of learning that much just to talk to u unless they care abt u a lot