Whatever the org is familiar with. I like the question, though. I've seen small projects that see negligible load, but are mission critical, written in a niche

Whatever the org is familiar with. I like the question, though. I've seen small projects that see negligible load, but are mission critical, written in a niche language no one else in the org knows. The language handled the problem good enough, but maintenance costs were massive for what the project was.