I recently got Tubi and I love it. If you don't have it then get it. It is a free streaming service (free due to commercials), but it does have a lot of older shows and movies. As someone who loves pre-woke British stuff they have a lot of that as well.
They have some anime and that is how I saw Fist of the North Star. I really enjoyed it. I am wondering was that based on a Manga or was it a totally original movie? I'd love to get more stuff related to it. Any recommendations for similar anime?
Robotech also used stuff from Southern Cross and MOSPEADA I have both on DVD but have never gotten around to watching them, so can't say if they are any good.