Start spending some $$$$ and learn fer yerself!
I spent over $60USD on picks, then decided on clawhammer (duh). I was gonna write a big long diatribe on picks in an attempt to become "sticky", but it boils down to using what you like, nothing more.
I prefer the ProPik std "metal-/plsstic" thumb picks. I also tried the ProPik "quick-pik", but it moves the "pick-point" (jes made that phrase up) too far back on my thumb, so went with the standard "ProPik metal-plastic" thumb pick, which puts the "pick-point" a bit further toward the tip of my thumb. You should also try Herco thumbpicks. ProPik even makes a metal/plastic version of the Herco pick (which I've never tried). I like the metal/plasic versions over all-plastic (like Golden Gate and National ) picks cuz the mtl/plstic picks let yer thumb breath. If you already have a Blue Chip, you know what I mean.
You can easily spend a couple hundred dollars finding jes the right picks, but the bottom line is shipping costs:
Elderly shipping is really cheap. They've charged me as little as $2.95USD fer half doz finger picks (I prefer 1941's).
Sam Ash ships fer free, any order over $10USD.
If you have Amazon Prime, use it!!
Also, do not be afraid to spend the $$$$. I settled on Showcase 1941's for my finger picks. They're worth the higher cost. I'd even like to try Hoffmeyer picks. OTOH, if you can afford Bue Chip thumbpicks, you can probably afford anything. ;)