Help with starting models of 3 different types of shirts.

Thought I made a thread about this already but I’ll just re-post. I was wondering if there is anyone out there to give me tips or demonstrate to me how to go about modeling organic mesh better ( IE ; such as shirts and pants ) with them being able to rig to the bones the correct way… Basically, just how would I start off trying to model a few shirts or hoodies like these below.