Considering Aquatic Arts sells imported shrimp, I do not recommend them. It's quite possible for imported shrimp to come in with Ellobiopsidae, which is a green fungus like parasite. Possible treatments to kill the parasite are likely to kill the shrimp in the process... if the shrimp don't die first from the parasite itself. On top of that, it's possible for the parasite to wipe out an entire colony of shrimp, if you aren't careful. Some people buy shrimp and their shrimp appear healthy, no new additions or anything.... 3-6 months down the road, the parasite rears it's ugly head in your aquarium! So even if you quarantined for 30-90 days, there's no guarantee that the shrimp you brought in are parasite free...
I can't guarantee that all these sellers have PFR shrimp, but here are a few that I do recommend! (linked to a couple)
Erik Lucas of BuyPetShrimp
Han Tran of Han Aquatics
Grant Eder of TGOEshrimp - Painted Fire Red Cherry - TheGardenofEder
Lucas Bretz of LRB Aquatics (or LRBretz Aquatics) - Buy Freshwater Aquarium shrimp for sale Snowball Neocaridina | L.R.Bretz Aquatics
I can't guarantee that all these sellers have PFR shrimp, but here are a few that I do recommend! (linked to a couple)
Erik Lucas of BuyPetShrimp
Han Tran of Han Aquatics
Grant Eder of TGOEshrimp - Painted Fire Red Cherry - TheGardenofEder
Lucas Bretz of LRB Aquatics (or LRBretz Aquatics) - Buy Freshwater Aquarium shrimp for sale Snowball Neocaridina | L.R.Bretz Aquatics