Excellent bounty, will get started right away and share with friends! 

There is a project business named Block Aray, they have cleverly places there office in the middle of where all the biggest American supply chain & logistics companies have their headquarters. In May they will announce a major partnerships and one can only speculate if that is FedEx, TnT or one of these giants in the industry.

Yes the manna coin seems interesting with their mind on the right place.
However with a big team they have very little presence and a vague website/roadmap imo.
I will be keeping an eye out for this and see if they can move something in the near future.

It looks like a good project, but I would´nt say its gonna shine for sure. Token price are a bit too overvalued imo.

Im new to crypto currencies and very selective with investments. I have looked at this coin for a couple of weeks now and still being dragged to it. I just need that one good argument for buying a bag, sure it got atomic swaps or at least intend to have soonish. However there are others with atomic swaps right? Maybe this is the only forked coin with atomic swaps?

Also I would want to put them into a desktop wallet, preferably a linux one. Which is most popular and safe?

Initially I liked Cardano and I still do. However in terms of more x gains and future potential I think Zilliqa is a very interesting project and they have started acquiring more staff, one high ranked from Goldman sachs i believe among others. Their sharding technique opposed to whats Ethereum is trying to accomplish seems superior as it has been part of the fundementals and ethereums sharding solution has to be build to fit their current blockchain. Also I believe that zilliqa´s team has from the start been thinking out of the box where as Charles Hoskinson´s brain been evolved around how to improve ethereum fundementals instead of throwing all sketches away.