How to handle payments for service to process payments on behalf of SMBs/customers?

Hey IH -
I'm building a service that can easily spin up online stores for small businesses (sort of like a vertical specific Shopify). I'm in the MVP stage and having trouble understanding the different payment processing providers out there. It seems like Stripe is the best and most developer friendly... but I'm not sure which of Stripe's products are needed. This is a bit of a beginner q I feel.. please bare w/ me this is my first go round.

I'm looking at Stripe Checkout but that seems more for if I myself wanted to process payments. Since I want to process payments for my customer's customers I don't think that's what I need...?

Stripe Connect looks good but it seems that its more for platforms that have many repeated type payments (uber, eComm platforms, etc) where you'd set up an account w/ direct bank info. That's good for the SMB, but I don't expect the SMB's customers to set up any bank info, just cc info...?

What service should I be looking for if I want the customers of my SaaS company to be able to process payments on their website/mobile app and view the metrics of those payments on their own Stripe dashboard (or maybe I build my own dashboard 🤔)??