I’ll talk by myself, but I always liked the idea of Ash with a lucario, but as an average mon, not different of any other capture. Obviously is impossible, but, I prefer wait and see what they’ll do.
Nah the ultimate shillmon of Hoenn is literally Blaziken :>
And nah, he still needs an actual Galar mon that could be a shillmon but I can't think of what candidate(s) that could be. In Unova, there's really no actual shillmon now that I think about it. There just really isn't.
My personal favorite is hatterene, even if it's "girly” and probably not the most shilled Galar mon. I like the irony of a pokemon that likes silence being trained by Ash “so loud” Ketchum. Also, Ash will have a “knight”, depending on how much time sirfetch’d will debut, a “witch” sounds fitting.
Also, I don’t see the appeal in dragapult. It looks...derpy.
If was my choice, it would be pikachu + occasional reserves,
plus:
Region hop team: Gengar, tyranitar, zangoose, lucario, carracosta, female meowstic, golisopod
Galar team: Rolycoly, hatterene, sirfetch'd, drednaw, duraludon, inteleon
Zangoose is pure Normal however which isn't particularly useful or interesting as a type, and Zangoose is almost a gimmick Pokemon as well due to its well-known rivalry with Habunake. I suppose that I could overlook the plainness of Zangoose's type, but I don't like the idea of it being a novelty Pokemon, which is almost certainly what it would become if it were to join the cast.
Personally, normal types are kinda versatile in comparison to other types and zangoose have actually a good movepool and a cool design (my opinion). But, again, it’s everything personal taste. I used zangoose during gen VI and it was very useful. Also, it’s better than, let’s say, give Ash slaking or bewear, who are essentially another versions of his snorlax.