What to make: a film, short film, series, web series?
One advantage to a web series is the absence of a gatekeeper. That is, you can upload (pretty much) anything you want to YouTube. You don't need to convince the website owner to include your work; you don't need to convince a TV station or movie studio to invest. In addition, sites like YouTube and Vimeo have built-in audiences.

To get a significant number of views, you would still need to do a lot of online promotion of your work by contacting bloggers, contacting "aggregation" sites that feature work like yours, posting on Twitter / Facebook / Reddit, and so forth.