Two ways:- 1)Ask. Ask everyone. Tell them what you are doing. Take their feedback. Good or bad. Improve your idea and update the person who made the suggestion

Two ways:- 1)Ask. Ask everyone. Tell them what you are doing. Take their feedback. Good or bad. Improve your idea and update the person who made the suggestion. And be ready for rejection. 99% will say no. Thank them for listening. You just need 1-2 investors to say yes. 2) Focus on a few people you think will be a good match. Really understand what their ideas are and how they see the world. Find a way to meet them and show them how what you are doing fits their ideology. Easier said than done. But very effective if done right. Lots of work involved in preparation.