Any decent dropshipping courses/tutorials?

Hello all! I've been around this forum for quite some time now, I mostly just lurk. I've tried my hands at a few things, offline web design being my most successful area. I'm looking to get into dropshipping. I currently know nothing about this and I'm just looking to see if there are any recommended courses or tutorials which will help me learn more about this. I already have a steady job and I'm just doing this as a side-income.

Thanks for reading! - Bonaparte