I found ubuntu mono to be one of the best in term of identifying those characters, with l and 1 being immediately identifiable, but O is only slightly larger than 0 so it can still be mistaken for a 0 if you are not careful (0 has a dot so it can not be mistaken with O).

I don't know of any monospace font where O can easily be identified as such and not mistaken with 0.

edit: see a sample here: https://fonts.google.com/specimen/Ubuntu+Mono?category=Monos...

Every character is easily identifiable by itself, except for O. I'm also curious if anyone has a monospace with better identifiably for O and 0.