It's very hard to find a project like this due to the existence of private investors in the form for Venture Capital. Usually good project looking for this angel investor to fund there project initial operating cost and marketing and just repaid them later on once the project succeed. VC only accepts quality projects which is the reason why hidden gems is only rare these days. Try to check old projects that still under development or lack of marketing like Neo, Kardiachain and many other blockchain that still have a very under value tokens.