Just caught a Solgaleo (that I named Justin) in Shield yesterday to complement my three Lunala (Nathan, Katerina, and Iota - Katerina started out as a gift Cosmog, while I caught Iota and Nathan, although I plan on fusing Nathan with a Necrozma, since that guy is from my previous Shield journey). Shield is my main Galar game. However, I will be replacing my Sword trainer with a male trainer (but who’s actually a genderless Ultra Beast - specifically my unnamed Celesteela, who I rarely used for battle). Just like with Emily, my current Shield trainer who is really a Lunala, my Celesteela will get a head start via having some of my previous legendary and mythical Pokémon transferred to his boxes, specifically my Mew, one of my Urshifu, and will get Emily’s help as a Pokémon.
Honestly, if I was a Gym Leader or Elite Four member, I’d definitely specialise in Fairy-type Pokémon. Then again, I’d get blasted by Steel and Poison.