In my eyes, Liberation Mono is still the best programming font, due to how readable it is even in smaller sizes (and it comes with LibreOffice I think): https://en.wikipedia.org/wiki/Liberation_fonts

There's also the Cousine version, which is more or less the same, both are also metrically compatible with Courier New: https://en.wikipedia.org/wiki/Croscore_fonts

After that, I rather enjoy PT Mono, except that the full stop (dot) symbol feels too small, I actually use the PT Fonts for most of my personal webpages because they're decently readable and not too stylized, nor too boring: https://en.wikipedia.org/wiki/PT_Fonts

But frankly, there's a lot of good fonts out there and it's entirely a matter of taste. Some like ligatures, some don't. Some like monospaced fonts, others like proportional ones.

It's also really cool when the OS itself lets you set your font preferences for most applications that you're going to use, I catch myself wishing it'd be easy to do that for all of the JetBrains IDEs and other dev tools at the same time, though. Maybe a simple GUI program or a script that'd let me set those particular preferences for all of my editors in one go.