3+ years Entrepreneur - Startup Mentor - Startup Sales Leader

Before you approach investors, I would answer the following the questions which will be asked by any (almost) any investor:

(1) Does my product have a Product/Market fit?
(Here is some help: https://www.youtube.com/watch?v=F9aG_8CwSMM)

(2) How will make money? Do you know how your business will work?
(Here is some help: https://www.youtube.com/watch?v=XxfbZoRLiDI)

The best platform to search for investors is angel.co. Furthermore, get active in your local startup community and meet with local investors. Try to find them via FB, TW or startup events.

I hope this will answer your questions. Please let me know if you have any further questions.