I publish a website just for people like me, you and the OP. The focus of
MY "TEN SPEEDS" is to help speed up the learning about vintage bicycles process. The information includes
how to find them,
how to tell if they are good or poor quality and many other things, all geared to helping people, new to the vintage bicycle interest, avoid making some or even all of the mistakes I made while learning.
Welcome to the Forum and hope this has been helpful.