Elastic (xel) is another underpriced gem at the moment. Make sure to get some while they are cheap!
Here are some useful links if you want to learn more about it:
Official Website: https://xel.org
What is XEL: https://xel.org/tag/what-is-xel/
Difference to other similar projects: https://xel.org/difference-to-other-projects/
Github 1: https://github.com/sprocket-fpga/xel_miner
Github 2: https://github.com/xel-software/orientation