These days there are Wordpress templates specifically for websites that sell online courses. They have them with flat-price courses or subscription areas you can only access if you're a paying subscriber, and good ones include pre-built click funnels that market a free starter course for email signups. They're not expensive. Even hiring someone to install the template and get it set up is not that much. It's definitely worth the investment if you plan to get customers online.

I have my own team for Wordpress needs. Happy to help if you decide you want to create a website for this.