My favorite clear is from Oreilys actually, only 1 of our 3 local oreilys here carries it but its Nason brand automotive paint which is supposed to be a cheaper alternative to Dupont and other name brand names. I still use aerosol for small parts and stuff but when its time to paint a body you cant beat real automotive paint and clear. I use a small detail HVLP gun to paint the RC stuff and it works amazing.
https://www.amazon.com/Graco-Sharpe-.../dp/B00QUX1PAK