Need help coming up with tree guilds for these trees in Kelowna, BC, Canada

Hello fellow permies!

I am part of a permaculture design certification course and I feel a little lost and overwhelmed with all the knowledge out there. I didn't even know what permaculture was a few weeks ago! I was wondering if I could get some sage advice from the more experienced permies.

To keep things short, I am currently working on a farm makeover plan project. The farm is based in Kelowna, BC, Canada, which means a humid continental climate. I need help creating tree guilds for these specific trees:

* Common Hackberry
* Freedom Japanese Elm
* Green Alder
* Laurel Leaf Willow
* Manchurian Apricot
* Shagbark Hickory
* Siberian Crab Apple
* Silver Maple
* Western Chokeberry
* White Birch

Any information, tips, or advice you have would be greatly appreciated.

I have seen Hackberry & Chokecherry (never heard it called western Chokeberry before, but that's what came up when I googled it.) seeds on Etsy, though I haven't bought from that site. If you're looking for actual trees, though, you're probably going to have to try somewhere else.