I'm almost always either with Mirabel, Anna, or Remy.
I accidentally assigned everyone gardening for a minute until I realized that you could even do that- (idk how I missed it), so while I can't say for everyone, these are who I bring for each task.
Digging - Elsa, because I low-key thought it was funny
Mining - Scrooge, because him being into gems just kinda makes sense
Fishing - Maui, because... what else?? He's huge and gets in the way sometimes so I may swap Moana to it later.
Gardening - Mirabel, I have her house in the meadow where my giant farm & orchard are, she reminds me of my family and growing up in farmland- so I kinda tried to recreate something that feels like a cross between my childhood home & hers.
Foraging - Remy, since he was foraging to cook at the beginning of Ratatouille!