First, I would suggest you select an idea which is not a verbatim copy of a tech giant of today. Do the due diligence and ask yourself: what is your unique value proposition? What are you gonna compete on? How are you gonna differentiate? How are you gonna reach your prospective customers?

Then how are you gonna use the money I give you in your business to grow it 10x in an about 5-10 years time frame so I can get my investment back? Put together a plan. Call it a "business plan" and put it in writing.

Jeff Bezos had to answer these kinds of questions (and many, harder ones) before he got his first investment. What seems to you as an obvious, trivial idea today was a novel, risky approach 30 years ago.

He did the work and that is why he's rich. We are here commenting on an investor's forum instead and that is why we are... what we are.