I think Ethereum may be suitable. For me, of course, this is not a completely correct statement, since I am investing in dynETH, which is, so to speak, its dynamic version. I advise you to read more about dynasets to understand how such a system works. I personally found out about it by accident while reading articles on medium. I am sure that if you start using SingularityDAO personally, you will understand how profitable and safe it is to invest there. In my experience there were only positive emotions.