I think we cannot find a real cryptocurrency investment right now. We have not reached that way, and it still needs more development. If you insist on investing, it's better to use the investment from real life so you can watch how much you will get the profit later. I think the project which is in the crypto world will be using bitcoin or another cryptocurrency for the payment options. I don't know what the sites about donations because I don't try to donate my bitcoin to any donations sites. I prefer to donate directly to some charity in my city.