Want to sell digital products online - not sure if theres a demand for it. I have many editable business powerpoint templates I.e pitch deck, agile presentations, various projects management, road maps... editable slides that I created over the years - Thinking about monetizing on them.
The trouble is you are up against services like Fiverr and GraphicRiver that have basically set the price point to be so low it's really difficult to create anything that people will value.
One option is to become a contributor to one of those sites and simply supply your templates to a service that will distribute them. You will have to figure out the type of licence you are comfortable with (Creative Commons of some sort), but it simplifies part of the process at least.