I'm sure there are field that should be absolutely crowded but where you can do something meaningful.
If I had free time, I would write an app to learn foreign languages I'm interested in. I'm pretty sure that there are good apps, but I tried a few ones, and none really fit my needs.
There are also software that I use a lot, like transcribe! which works well, but that I could see how to improve.
So as others mentioned, do something that you would be interested in.
I'm sure there are field that should be absolutely crowded but where you can do something meaningful.
If I had free time, I would write an app to learn foreign languages I'm interested in. I'm pretty sure that there are good apps, but I tried a few ones, and none really fit my needs.
There are also software that I use a lot, like transcribe! which works well, but that I could see how to improve.
So as others mentioned, do something that you would be interested in.