It's just I'm interested in a lot of things haha.
So put ten of the things you are interested in into a hat and
pull one out.
There's your documentary.
I have found that the docs I like the best are ones made by people
with a passion for the story. Even if I, personally, am not interested
I get caught up in the passion of the filmmaker and the people or
subject. Seems silly to me to try to make a doc about something
people actually want to know about or would be interested to see
if you, personally, don't have the passion to spend a year (or more)
of your life on it.
I'll give an example: I have no interesting at all in long distance hiking.
I know a guy who is passionate about that subject. He has made three
documentaries about three different long distance trails - I was the
editor on two of them. I still have no interest in long distance hiking
but I was (and am) fascinated with his passion for it. I have watched
several docs about long distance hiking and didn't really care because
got the feeling the filmmaker was doing it because he knows there
are people who are interested.
Randomly pick one of the things you are interested in and make a
doc from your passion. People will want to see it.