Yaqi, especially if you check out their live sales on aliexpress this is cheapest option likely. Razorock and stirling are probably also good options. Turn n shave chess brush is fairly cheap at 15 shipped. More moderate but still perhaps budget friendly are PAA and simpson trafalgar.
I highly recommend any of the Trafalgars myself, although I wasn't sure what you actually meant by cheap. Many people have different values on what's cheap. I have the Simpson T2 and T3 and love them.
I also like the Yaqi Timberwolf. If you watch the Yaqi Factory Store on AliExpress they'll put it on sale every few months for about $8. It's currently $14.86 with free shipping---shipping will take about 2 months.