I'm the founder, so take this with a grain of salt, but depending on _what_ you're selling, https://moonbase.sh may be an option. We built it for selling software specifically, primarily downloadable/installable software, and was annoyed by the difficulties of onboarding affiliates. So revenue sharing is built in, and handled in any way you see fit. Feel free to book a demo if you think this may be a good fit for you.

For MOR, Stripe has its own (recently launched) Managed Payments system: https://docs.stripe.com/payments/managed-payments