For subscription-style services, glide has integrations with both Zapier and Make. Make lists more functionality than Zapier on it’s integration page (linked below).
I have not set up integrations with Stripe and Glide before. Although coding a solution with Stripe was very simple compared to other payment providers I looked at. Of course, if you are under pressure timewise, Stripe’s own interface makes manually creating subscriptions and sending them to prospects very easy indeed.
What do you mean by legacy “Maker”? Legacy “Starter”?
I’m not sure I fully understand your question. Do you mean you want to setup a flow for users to buy your training course inside one app like a subscription/one-time payment?
You would have to connect your app with a Google Sheet, then after a payment is done using either Stripe or PayHere, catch the webhook payload in Make.com, and write the payment info to a sheet.