trees and or shrubs that grow to 25ft or less in mature height

hello, i am looking for types and varieties of multiple functions tree/ shrub plants that i can mix in my food forest yard 1/3 acre. i am looking for trees that mature height is 25ft and lower because i only have so much canopy/ sun and dont want 50-100ft monster trees taking all my sun/room.

my goals are soil building/fixing nitrogen/ mining minerals out of ground & pollinators for my other food crops in food forest. also any smaller trees that do well in boggy wet g hard clay soil would ve good too because my backyard is a boggy wayerlogged hard clay.

forgot to add zone 6b, currently growing 7 different pawpaw varieties & 2 pear varieties & 2 blueberries varieties with ones in my backyard which is waterlogged boggy hard clay soil as my front yard soil isnt boggy waterlogged nearly as bad. but what i did was build little raised beds around each tree / bush and have cubic yards of organic matter in each plant/tree to get them to survive

thanks, Lebowski