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.
I recommend this one because it's cheap and gets the job done. PointZero Portable Airbrush Air Compressor Tankless Oil-less 1/5 HP https://www.amazon.com/dp/B004KNBVM4/ref=cm_sw_r_cp_apa_i_e6c3CbH2BCW5E
I purchased this guy for $64.82. It was an Open Box unit on the Amazon Warehouse Deals. Literally, still shrink wrapped, just in a different box. No damage. Usually a $200-250 air compressor. I was given my first airbrush (my daily driver) as payment during a commission. It is a Badger Patriot 105. I was intimidated by it for over a year and then I decided to jump head first one day and honestly, I haven't looked back. Only regret was not starting sooner. Amazon has the Badger Patriot 105 on sale for $75. At the beginning of the year Badger Airbrush company ran a Happy 54th Birthday Sale and I picked up the Badger Renegade Krome for $54 haha. It retails for $200-250 but Amazon has it on sale for $102. I have yet to use this guy yet, but I am nearing the end of a project and I am going to give it a whirl in a couple weekends. The Airbrush hose for the badgers are listed as well.
With that being said, you can find deals ALL OVER THE INTERNET....you just have to look for them. I am always scowering the web for the best deals possible haha. For the past 3 years I have been using a 5hp construction grade pancake compressor with a moisture trap. Let me tell you....I REGRET not upgrading to an airbrush compressor much sooner. The air is more consistent, you can fine tune the correct PSI and it is exponentially more quiet. I personally don't care about the tank feature, but that is a personal preference.
Hope this helps you all :D
-B