Ask How do you set up payment gateways for a membership site?

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I want to set up payments for my membership site, but I don't know where to start. I know I need a payment gateway, but I'm not sure which one to choose. I want it to be secure and work with different payment methods. It should also handle recurring payments without issues. Do I need to connect it to my bank account? Are there any fees I should know about? I want something easy to set up and manage. What is the best way to set up payment gateways for a membership site?