Etherium, Dash, IOTA, LTC are all crypto currencies that are actively traded. There are many others as well. What follows is a description of my journey into crypto currency mining. This ultimately led to me creating an automatic crypto currency trading program. You can find that in the GDAX Crypto Trader section. I use my mined coins to feed my proprietary crypto trader.
Designing A Rack:
I used Fusion 360 to design a cube system that allows cheap shelving mounts to be constructed into a frame. When it is properly spaced, it also allows a PCI-e card to be mounted. This rack design does not account for the mother board, the power supply, or the hard drive. Hindsight is always 20/20 🙁
nVidia GTX 1080 x 5
MSI RX580 8G x 1
I mainly use NiceHash to mine for bitcoin. It has proven to be a good source of mining and they meet their payout schedules.