I'm more comfortable using PayPal for online transactions. How do I link a PayPal to my account so I can receive money?

Have you read our guide at all? https://itch.io/docs/creators/payments

Please make an effort to find an answer to your question first before you ask others. When you create a topic asking for help you should share what you already know so that others do not waste their time trying to help you with things you may have already read.