DuquÊ?
Too lazy to pick a pic
Well, it's a quite long list! I don’t have a pokemon I'd like to see in the cast, independent of with who, but, specifically:Were there any Pokemon that you were surprised never got caught by the main cast? After Jessie got Seviper I was sure someone would have gotten a Zangoose. Not necessarily Ash it could have easily gone to Brock. It would have been their version of the Psyduck gag with Zangoose bursting out of its ball to confront Jessie's Seviper or visa versa when someone else was going to be sent out instead.
Ash:
Even if took him until JN to have good Kanto 'mons, I think the only things actually missed for him were an eeveelution and raichu. Because he can't have both the secondary mascot of the franchise (even if it stays as an eevee for the shortest time) and the evo of his main partner. And I'm not talking about evolve pikachu, but Sinnoh gave me the idea that Ash can have both pikachu and raichu, since both be their own characters. Specifically, an alolan raichu.
From other regions, I always thought that mawile, zangoose, grumpig, braviary, gollet, carracosta, clawitzer, meowstic, florges, drampa, g-darmanitan and hatterene had a decent chance to be on his line ups.
Wishful thinking.
I generally like his teams as a whole by the end of their sagas, but, while some teams are well rounded (Kanto, Johto, Sinnoh), others could use extra member(s) (Houenn, Kalos, Alola, Journeys) and Unova could have given him a better selection.
Counting evolutions, I was expecting garchomp and scrafty for a loooong time!
Brock and Misty:
Brock had a larger pool of choices instead just rock types, but graveler looked an easy choice for him. Marowak, camerupt and bastiodon were things I expected he had.
About Misty, dunno, horsea looked like the only bummer. Kingdra would be a good member. But, honestly, I don’t care much about her to give her more team changes.
May:
Swablu/altaria. I think everyone agree about this one. Alternatively, medicham looked like a good change of flow to her team. I was expecting her with a spheal intead squirtle.
Dawn:
Ariados. Specifically, that shiny one. While it's a thing I could see Brock or Cilan using, Dawn could make a good use of it. I always had a thought she would do a good work with liligant and scolipede, since she doesn't mind much about appearances (aside her own).
Cilan:
Escavalier and trevanant. They look like fitting to his style, more analytic and sometimes tricky.
Iris:
With so many dragons in Unova, she doesn't have at least drudiggon by her time was disappointing. Aside that, deino.
Clemont:
I always wanted a manectric in the cast and Clemont was perfect to that. I don’t dislike luxray, but manectric would be very interesting. If not for Ash, I'd give Clemont a meowstic for variation.
Serena:
Vespiqueen. It was dumb how it wasn't her first solo catch, before meet Ash and co. I wanted a vespiqueen for Dawn, but it would be a nice thing for Serena. Also, aegislash. Sorry, guys, but it would be really good under her ownership, to build some good offensive out of the showcases/contests.
I think that's all. Go have a large pool and I can't think about anything I'd like to see with the Alola gang.