I am aware of the above three projects. I still believe the only project that can solve real world financial issue is Bitcoin. For Blockchain I would always recommend Ethereum. Apart from these two I found a few that might be able solve real world issues.
Here are two projects that I have been following for quite sometime now. I would recommend you to DYOR before investing in them.
1.
CASA2.
REGENClick on those links to know more about them rather than asking what these two projects are all about.
I did some research about these two projects and found Casa to be interestingat first as it is working on self custody secure storage more like a wallet for only Bitcoin & Ethereum. Ethereum support is still not functional at the moment. What is intresting about it is that it provide multiple private keys for a wallet. What I don't like about it is that it is a centralized project and another draw back is that it is currently based only for mobile OS.
REGEN is a project that is basically working on farming but I have seen such projects fail as the government does most of what is needed to feed it's civilians. If you have any other project in your mind then do tell me.