Probably better to work on one of your own ideas. Write down every idea you have, write out pros and cons for each, can you combine them? Then figure out simple business plans for each, keep it simple, find you competitors and learn from them, find your customers and learn from them, what resources you need to build a mvp, how are you going to market that, how do you plan to grow the business from the mvp.

From all this research hopefully you will get a better feeling for which of your ideas are worth following up, and their potential.