Check “Basier Mono” from Atipo. Regular weight is free and the other weights are quite cheap.

Source Code Pro.

There's also Office Code Pro [1], a variant with slashed zeroes, less stylized bangs and different lowercase "i" and "g", among other subtleties.

[1] https://github.com/nathco/Office-Code-Pro

That's a new one to me - thank you very much for linking it. I always hated the dotted zero source code pro has, so this might become a new favourite.

what's your current favorite terminal font?

Perhaps surprisingly, Consolas. Slashed zero, great readability at small and large sizes, good hinting for both low and high DPI screens, easy to read/scan in large blocks, very wide support.

Ubuntu Mono but you need to set font-size bigger than for other fonts.

Ubuntu is an OpenType-based font family, designed to be a modern, humanist-style typeface[1] by London-based type foundry Dalton Maag, with funding by Canonical Ltd https://en.m.wikipedia.org/wiki/Ubuntu_(typeface)