I've been using Bitstream/DejaVu Sans Mono for years as I really like their choice for 1Il| but this page made it easy for me to find some alternatives to try. Ubuntu mono and Monoid both stand out as looking good to me (M+ is a close third, but has larger line spacing than I'm used to).

I don't know if you're still looking here, but after trying out the alternatives, they all had things I didn't like. Source Code Pro was nearly perfect for me, if the latin characters were only as tall as the non-latin characters; the designer seems to like generous space between lines to the point of even skimping on accent length for upper-case characters. The good news is that it makes the Han characters much more legible, as they are larger than the latin ones, but I never use those in my programming.

Looking at alternative fonts, I noticed that the designer of the Meslo font considers Menlo (so also Bitstream/DejaVu) to be "too cramped," so my personal preference must be fore closer-together lines than average.

Here's some samples from a directory listing:

https://phab.jasom.org/orfiles/dejavu-sans-mono-latin.png

https://phab.jasom.org/orfiles/dejavu-sans-mono-non-latin.pn...

https://phab.jasom.org/orfiles/source-code-pro-latin.png

https://phab.jasom.org/orfiles/source-code-pro-non-latin.png

I've been using Input Mono for a few years now. I think this is the longest I've stuck with a particular monospace font.

http://input.fontbureau.com/preview/?size=14&language=python...

I've been using Ubuntu Mono for years and absolutely love it. Consolas and Roboto look nice as well though.

Roboto Mono - I live in jetbrains product (intellij, pycharm, phpstorm) and the font rendering on Linux is pretty bad yet Roboto Mono actually manages to look good, I'd post a screenshot but I'm away from my machine at the moment.

I'm a huge fan of Liberation Mono. I've been using it for years -whenever I try to change up my terminal a bit by playing around with other fonts, I always end up back where I started.

I tried using Inconsolata but recently switched to Anonymice pro.

Inconsolata all the way.