Does anyone know of any LEGIT sites like sampler.io that gives FREE samples in EXCHANGE for a REVIEW ?

I get them from sampler and can verify they’re legit but a lot of the other sites I’ve looked at seem like scams so I’m trying to see if anyone else actually gets samples from companies that are actually legit and free?!

NOT looking for recommendations for where to get free samples WITH PURCHASE as that defeats the “free part” ????????

Thanks!