Take a look at these ways to earn money online:
Create a paid membership web site where you rent either physical services, online ones or digital products. The software ones would be limited to their membership and turned off when it terminates. People sometimes would rather pay-as-they-go than pay a large price to hold a package. A backend might be developed with the original seller. Get permission if needed.
Build a paid membership web site where you have recordings of teleseminars members can listen to. You could add new ones every month. You could also give members access to live ones. This also lends itself to archives for those joining later.
You can set up a paid membership web site where you have recordings of webinars that are available for members. You could add new ones every month. You could also give members access to live ones.