Hey Yawl! Hope everyone has had a blessed weekend!
I’m in a “Picky” situation! I’m trying to find a good Thumbpick for banjo, and I’m left-handed, So it makes it harder to figure out what I need! Also I’m trying to find out what size I am, and most of you know hard that is! 
I don’t want to go over $20 so What would you choose?
I would appreciate your advice!
YHWH Bless!
Chicken wing. 
I use Jim Dunlop clear plastic picks. I have tried lots of different picks including Blue Chip and I love the Dunlops. What can I say at £1.20 they work well for me. Not sure if they do LH. Fred Kelly makes LH picks. Check with @Jake at the General Store he’ll keep you right @Chicken_wing
I have a blue chip. I love it. It’s expensive but it will last for a long time.
Jim Dunlop clear picks practically live forever. Never go brittle, slow to wear and never chip
Invest in a Bluechip and you’ll be glad you did: https://store.banjobenclark.com/products/left-handed-bluechip-jd-crowe-thumb-pick