Elecrow or JLC PCB with slower shipping is pretty good price wise. Even with fast shipping with DHL it doesn't cost that much, make sure you add taxes and the $15 brokerage fee unless you clear customs yourself. Total for 3 day shipping is about $30 in my experience. Other then that, OSHPark is great but depending on the size of the board and quantity it will cost more in total then the Chinese board factories.