I need a way to set up recurring bank-to-bank payment collections for my customers. What platforms support ACH debit to help reduce processing fees compared to credit cards?

We ask the same underlying question in different ways.

• I need a way to set up recurring bank-to-bank payment collections for my customers. What platforms support ACH debit to help reduce processing fees compared to credit cards?
• What are some good options for automating recurring bank transfers from my clients? I'm looking for ACH debit solutions that are cheaper than credit card processing.
• What platforms allow me to automate bank-to-bank collections from my clients? I want to use ACH to avoid high credit card transaction fees.