Two resources for you:
If you get the Quilt Show, then there are tons of episodes featuring paper piecing, but I like the one with Judy Mathieson, who uses a clever method such that you have no paper to tear off the back of your work:
https://thequiltshow.com/watch/paper...judy-mathieson
Her method and many others are documented in the wonderful book:
The Experts Guide to Paper Piecing\
https://www.amazon.com/Experts-Guide...s%2C148&sr=8-1