I would love to offer my audience the ability to promote my membership and earn a commission of 30%. At the very least provide a custom link and track signups via that link. It would be best if Searchie handled the payouts for affiliates via PayPal. Other programs do this such as Podia. Here's some information about how Podia handles affiliate programs for their course/membership owners:

"We’ll handle all of the calculations for you — all you need to do is click a button to pay them. It’s your choice if you want to pay them immediately after the referral, or wait 14 days, 30 days, etc.

Affiliate cookies last up to 15 days, so as long as a customer makes a purchase in that amount of time, it should track the affiliate. Set the commission terms that you want to pay your affiliates for referring new customers to you. You can choose between a percentage or dollar amount.

Direct your existing customers to sign up for your affiliate program using their PayPal email address, as well as obtain their unique affiliate links."