Trusted Rep Bag Sellers?

Hello all! I am new to this sub and wanted to ask what sites/sellers you would recommend for a first time buyer. I’ve been wanting to get a rep for a good while now but the process overwhelms me, and I’m just plain scared to purchase from a bad seller. I don’t know anyone else in my own life that is into this so I have no one to ask or reference to compare this to. Any info is helpful and deeply appreciated!