I love Fira Code. I suspect Iosevka is the winner when it comes to customization though: https://typeof.net/Iosevka/ https://typeof.net/Iosevka/ You can basic

I love Fira Code. I suspect Iosevka is the winner when it comes to customization though: https://typeof.net/Iosevka/ https://typeof.net/Iosevka/ You can basically mimic features of almost any other big name among monospace fonts. The only downside I can think of is that it updates really often and the website doesn't have a way to save your customizations, so upgrading is a drag. Given that it's a free font I'm not complaining though.