I went in basically blind, so while I knew of a few Hisuian forms from the trailers and such I didn't know where they'd be or how easy it'd be to swap my party around. I ended up adopting the "whatever you find" approach and built a team of Cyndaquil, Starly, Bidoof, Shinx, Geodude and Gastly. Later on I struggled with type coverage (particularly Water-types, as I recall) so I decided to switch the team up a bit: Bibarel/Graveler/Haunter were out, Gastrodon/Petilil/Goomy were in. That team took me through the rest of the game; later on, while I was taking a break from level grinding to pick up some satchels I flew straight into an alpha Gardevoir and happened to catch it, so I decided it might as well put it on the team over Luxray to help against a certain postgame challenge. As such my final team ended up being Typhlosion, Gastrodon, Staraptor, Gardevoir, Lilligant and Goodra.