It’s not mine, but this cheat sheet has been great to reference when learning new languages or coming back to old ones.
FLASHBANG - Warning the sites in light mode, so do keep note.
In regard to what’s available, I’ve included a screenshot of their front page with an overview of the languages and software available.


As someone else has pointed out, it really depends on your use case. Although I personally keep my drives (SSD & HDD) in a redundant RAID configuration as my data is largely mission-critical.