"
Grandes seguidores/admiradores/fans". "Gran" is only used when there is a singular noun. With "fanáticos", the word is already a superlative, so adding "gran/grandes" sounds pleonastic.
"Hincha" is a word that is being used more often in the Mexican media, but many people
is are more comfortable with "fan". ¯\_(ツ)_/¯
Side note: All your examples are masculine, so it pops out that you wrote "aficionadas".