Tabletop Miniatures

Salutations from a complete novice. What's your recommendations to get started?

Note: A FLGS in town actually has a mini-painting workstation that you can use for $5/session, or as part of their monthly subscription for playing TTRPGs onsite. Since I play PF2E there several times a week I have that subscription. So I have a place to paint that's already kitted out with just about anything you could need for mini-painting. (I think they charge extra if you want to add stuff like grass, sand, etc. to the mini, but the primer, paints, sealers, etc. are all included.)

I have two awesome minis arriving soon that are unpainted, so I'm looking for online sites/videos that start from "I know nothing" and work up from there.

Thanks in advance for any and all guidance you can provide!