If I was not down to pay for a font, then I'd probably use one of Iosevka's forms. Personally, however, it became clear to me that just like my monitor, the font I spend hours looking at every day is also worth some money.
I like narrow fonts. Barlow is excellent. News Gothic is fantastic. Geo Grotesque is super beautiful. But it just doesn't work for me when a coding font is narrow. Fonts like Iosevka and Pragmata are harder to read than needed and for no clear benefit. Especially when used for projects based on C and derivatives. If you ever find yourself needing to cram more symbols per line onto your screen, it's a sign that there's a coding style problem! Lines simply should be short enough to not require horizontal compression.
Obviously, YMMV, to each their own, etc.
I like the narrower font so I can fit two side-by-side files with full 120 character width each on a regular 16:9 display. Iosevka is likely my forever font. I find it both beautiful and fit for purpose; I couldn't ask for more.
Re: "lines should be short." I prefer my code font to work even for bad code. It's not always my code that I'm looking at!
My takeaway is that monospaced fonts are basically a solved problem thanks to Iosevka. It does everything. And you can mix and match individual glyphs to your exact preferences!
It even has a Pragmata Pro Style.