I used avian biotech, cheap and fast. Here's the thread I posted about it. I recommend feather testing, I did blood test and My birds bled like crazy afterwards.
Eclectus, CAG, BH Pionus, Maximilian’s Pionus, Quakers, Indian Ringnecks, Green Cheeked Conures, Black Capped Conures, Cockatiels, Lovebirds, Budgies, Canaries, Diamond Doves, Zebra Finches, Society F
I use Avian BioTech. I’ve tried other companies and had problems. I use the blood samples and have my birds tested for viral diseases with the same sample.