If you want to see what kind of customizations you can do with Iosevka, here's the blend that I use daily: https://git.sr.ht/~ashton314/iosevka-output
I essentially wanted Input Mono [1] but with more characters. Iosevka has a stylistic preset ("ss18") that sets the character variants to match the designs of Input. There's also the "extended" family, which matches the width almost perfectly, albeit I need the font size to be 13pt for Iosevka to match what Input looks like at 12pt. Go figure.