At the moment I am investing in a couple but https://t.me/travelertoken impressed me a lot. They are operating in the travel industry, a highly competitive marketplace. What impressed me the most is the fact they are developing their own blockchain in order to get through all the inefficiencies related to the public blockchain.
With their new infrastructure, the goal is to implement a simplified standard that not only minimizes costs for customers but also maximizes profits for providers.
It is a huge project and I think it has a great potential.