First blockchaine projects in their niches

[ShadowBody]

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,

[jeronimosuykens]

You should go to mainstream sites. And those sites advertise directly on that crypto page. There is more trust and easy to find things.

[Awesomus Maximus]

My understanding of these blockchain projects is that the huge majority of them are still work in progress. There are exceptions, like saltlending in the banking industry, steemet for blogging. I don't know how many more working project you will be able to find but I bet there won't be too many. I think it doesn't matter when they started if they didn't deliver.

[bomj]

Take a look at our options to work with the blockchain:
https://bitcointalk.org/index.php?topic=4341911.0

We are also looking for new opportunities for using blockchain:
https://bitcointalk.org/index.php?topic=4597365.0