I really like the Sotar 20/20 I got. I watched a few reviews on YouTube before buying one.
At first, I got a cheap $80 kit that came with a brush and small compressor, just to test the water, but using them were a pain. The brush would clog often, the paint was applied inconsistently, and the compressor was hard to regulate due to not having a PSI indicator.
I'd recommend splurging on a good brush, like the 20/20. Watch a few video reviews to see what you like. Iwata brushes were also highly recommended. If you go to a physical store, like Hobby Lobby, you might be able to find a coupon or discount. I heard Hobby Lobby has coupons for up to 50% off some expensive items, but I got mine online via Amazon card financing.
I'd also highly recommend getting something like this to make connecting/disconnecting easier. It's a minor thing, but it's so convenient I can't go back to screwing/unscrewing the hose manually.
Besides that connector, here are the items I got. I've been very happy with them and actively trying to find excuses to use them more.