If you truly want to invest no money and just test how much traffic you can get based on content alone, here is a way you could do it:
1. write your articles in Google docs and making the sharing setting "public"
2. start a Facebook page (and/or Twitter account)
3. do intro blurbs on social media that link to your Google docs page
The major downside to this is that it would be hard to track traffic to your final doc, though social media stats would show you how many clicks your links got.
There are many other downsides -- like missing out on the proper SEO you get from having a domain and proper urls for each article -- but it gives you your free option to test things.
1. write your articles in Google docs and making the sharing setting "public"
2. start a Facebook page (and/or Twitter account)
3. do intro blurbs on social media that link to your Google docs page
The major downside to this is that it would be hard to track traffic to your final doc, though social media stats would show you how many clicks your links got.
There are many other downsides -- like missing out on the proper SEO you get from having a domain and proper urls for each article -- but it gives you your free option to test things.