Hacker News Reader

Perhaps not suuuper alike, but I found the jetbrains font to actually be awesome:

https://www.jetbrains.com/lp/mono/

Surprisingly, setting JetBrains Mono to 13px in the editor is still way more readable than any other font. Especially on Windows.

I like Menlo as a fallback; it’s fairly clean and not particularly flashy. I’ll admit I haven’t looked at the licensing for it though; I know it ships with macOS and is almost certainly under a less restrictive license than SF Mono but it might not be as usable as you’d like. I think it’s based on DejaVu which is fairly permissive if you’re OK with a similar (if slightly less polished, IMO) font.

I don’t know much about typefaces, but Roboto Mono looks fairly similar to me.