Is there any places where you can check if UG sources are good?

I’m on TRT through my doctor and want to throw in some NPP in. It’s my PCP so he’s not doing to give me Deca or NPP. I’m an old school juicer back in the day. Man has stuff changed these days. So many different ones out there and trying to find someone domestic in the USA that’s making the stuff in there bath tub. If anyone can help me out by PM or send me to a website that has reviews. I used to use professional muscle back in the day but that place looks like a zoo now.