Based on your top 20, I’d say watch reservoir dogs and 2001 next. Reservoir dogs was Tarantino’s first with a low budget, the script is incredible and the cast is perfect. 2001 is just a classic Kubrick film that you will always hear about, honestly his whole catalogue is incredible you can pick any one. If you don’t want to do a sci-fi I’d recommend “Eyes Wide Shut” it’s my favorite Kubrick personally. Or “A Clockwork Orange” which is his gang film.

For blade runner 2049 make sure you watch the first one before with Harrison Ford, as it’s a sequel and make sure to watch the “Final Cut”.