FlytrapCare Carnivorous Plant Forums

Rainbow Carnivorous Plants is my go-to for pings. Always very healthy adult-size plants, packaging is exceptional, and they often run sales and sometimes throw in bonus plants. I've only ever ordered pings from there and CalCarn, and Rainbow wasn't just in a league of its own, it was playing an entirely different sport.

I've always had good luck with Cascade Carnivores https://www.cascadecarnivores.com

I've gone to bugeater_gardens on Instagram for my Pings. He doesn't usually post sales, but if you give him an idea of what you're looking for, he might be able to help you out. If you're looking for function over fashion, he can usually be more flexible with the crosses he does. In my experience, the crosses that seem unremarkable as juveniles can grow up to be pretty neat looking.
You can PM him here to see if he has anything available, his username is Xanthoparmelia.