I'm trying to gather information about blockchain projects which were the pioneers in their niches (for ex.,  banking, gambling and so on).
Of course, I make my internet research but will be very appreciated for any additional help and suggestions. 
We know some projects created first but still working on a product and others are younger but already have a working product or MVP.
I think it would be good to divide projects that have a product/service and haven't yet.
So again, I will be very appreciated if you can help me to point out on ...

Respectfully,