I am looking for a recommendation for a font which has certain properties. It is for use in figures in a scientific publication. The journal sets style requirements (prefers Helvetica), but unfortunately there are incompatible practical requirements (distinguishability of glyphs).
- Must be sans serif, preferably resembling Arial/Helvetica.
- Must have excellent distinguishability of similar letters like I/l. It should be obvious what letter a glyph represents, even if it stands alone with no context.
- Should be free as in beer, or very commonly available (e.g. comes with MS Office).
- Would be nice if it had a clearly distinguishable bold variant (not a hard requirement)