The best alternatives to Cathode are Hyper, Hacker Typer, and Shell Notebook. If these 3 options don't work for you, we've listed a few more alternatives below.
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Hyper is an open-source and extensible terminal emulator available on MacOS, Windows, and Linux. It's built using web technologies, specifically Electron (the same platform that powers Atom, Slack, and Brave).
Shell Notebook is a terminal packed with features to unleash your productivity. You can: • Type your commands into cells and run them from the notebook • Run commands both locally and remotely (via SSH) • Update your working directory via Finder
cool-retro-term is a terminal emulator which mimics the look and feel of the old cathode tube screens. It has been designed to be eye-candy, customizable, and reasonably lightweight. This terminal emulator works under Linux and OSX and requires Qt 5.2 or higher.