I've been using Sub compression pants for the last 2 years, and they're just as good as the BJJ brand ones. They're around 30$ on Amazon
I use these, they're $18 and are still holding up well after 3 years of no gi https://www.amazon.com/dp/B002VCPVHW/ref=cm_sw_r_cp_awdb_t1_cAR3DbZV9P6AD
I prefer them to the name brand ones I have since they offer better compression imo
Yes, they are great