It really depends on where you are. I know a lot of people in the western part of the country go to Mulberry Farms. I live in Pennsylvania, so shipping is way too expensive for that. They sell Phoenix, Silks, basically everything on the beardie diet bugwise.
However, if you're on the eastern side, I use Ghann's Cricket Farm for my Phoenix Worms, and Reptile food for Crickets and Wax Worms. Save myself fifty cents using Reptile food for crickets instead of Ghann's. That fifty cents adds up :lol:
If you let me know where you are from, I could help a little more.
Hope this helps.
-- Jacqui