Cute hair!! Awesome ringlets! Curl type isn't as important as porosity and texture, though, so I would focus on finding out what you're working with. I agree you're probably 3b-3c, but like most curlies we have a mix of curl types on our head including some straight pieces, at least for me, lol.
2C/ Coarse/ Normal porosity/ SW Florida/ Transitioning to gray
Cleanse: CJ Daily Fix, JC Cleansing Cream, TJ Tea Tree Condish
Condish: JC Too Shea, CJ Curl Rehab (both as RO & LI)
Stylers: UFD CM, CJ PP, JC Spiralicious, Darcy's Cream Gel & Cocoa bean whip