Aliexpress - Best rear brake for testing

[KnollyBro]

I am building up a project/putter around bike made up of spare, used and cheap Aliexpress parts to ride around on my local mountain. This is NOT one my main bike so I am not interested in spending a lot of money on it. I was wondering if anyone has purchased a decent rear brake from Aliexpress and could recommend something for me to mount on the bar. It would be nice it it used SRAM pads (I have Code RSC and Guide) but I doubt I will be burning thru a lot of brakes.