Hi mate ! You are right about airbrushes, you will start to use them for everything soon !
Clogging is a pain in the ass. I use mostly Tamiya and Vallejo paints and thin them with isopropyl alcohol.
Thinning with water stops my brush dead, and
GW paints are problematic for the most part too.
I actually use a Chinese 50 dollar copy of a 500 dollar Iwata and get on just fine with it, tho I am by no means an artist, it does what I want it to do