Hello there! I have a Salazzle among my mostly male team and I noticed that she hasn’t established a reverse harem which Salazzle are known to do. Is normal? Thank you in advance and have a nice day.

Absolutely. Some salazzle just aren’t interested in forming breeding groups, either because they prefer the company of female pokémon or simply don’t wish to breed at all. You could try placing her with female pokémon to see what her reaction is, but even if she expresses no interest at all, then always do your best to support her and her decisions.