I like on my Mac how its choose shows similar characters, so "u" suggests "U", "ü", "ú", and so on.
Suggesting similar characters would definitely a nice feature, I'll add it for basic cases.
It is "₧", which is U+20A7. https://en.wikipedia.org/wiki/Spanish_peseta comments:
> In the version 1.0 of Unicode the character ₧ U+20A7 PESETA SIGN had two reference glyphs: a "Pts" ligature glyph as in IBM code page 437 and an erroneous P with stroke. In Unicode 2.0 the reference glyph P with stroke was erroneously displayed as the only symbol for peseta[5] and was later corrected to the Pts ligature and a separate character code was added for the peso sign.
pointing to why the P-with-bar unification of the Spanish and Filipino peseta doesn't work, at https://www.unicode.org/L2/L2000/00013-n2156.pdf .
The visual display seems to come from the use of Grotesk, see https://fonts.google.com/?preview.text=kl%E2%82%A7&preview.t... for a couple examples with that presentation.