NoCode checkout/payment/schedule for Zoom webinars

Hello -

I have a client who does paid classes over zoom. They have a few different classes, but each of them is conducted weekly or biweekly, sometimes even simultaneously.

Right now they are using Calendly for signup, then manually creating a webinar in Zoom with the attendees. I am helping them automate this.

the problem as I see it is the Calendly piece - it's not really made for webinars, so it's become tricky to say 'this call type has a max attendance of 12 people, and happens on these dates". Calendly can do it, but it's cumbersome.

I am wondering if anyone has any good ideas for how to create a customer experience where they choose a class, then choose available dates for the class, then make the payment and are automatically enrolled in the webinar.

I am an integromat fan and the integration to zoom is a snap - Im most interested in a good way to present a shopping cart kind of experience for users who want to enroll in a class. I haven't found a great fit for this.

thanks!