@revolverocelot the ASL App is a thing you could look into, it's on iOS albeit an paid app but is created by deaf people
more than anything else, if you are planning on taking ASL classes irl, i'd highly recommend learning from a deaf teacher over a hearing one! depending on which state you live in (if you're in the US), you could try searching out a local school for the deaf to see if they might have any ASL classes