I have two crabapples that have scab which, despite my efforts at spraying with fungicide during the leaf tip stage, are in bad shape. The advice here was to replace. Help me pick replacement trees!

The crabapples serve an important function of providing dappled shade to my patio and surrounding garden beds and some screening of this patio from the adjacent driveway and my neighbors house (not visible in photos).

My criteria are: Mature size about the same as these crabapples; provide screening but not be so dense as to transform the patio area into full shade; play nice planted with perennials and boxwood; minimal litter.

Things I'd love but aren't mandatory: something that puts on a great show in fall, as that's one thing I don't have except for a small Japanese maple; leafs out early and holds leaves relatively late; reasonably priced (up to about $1,000 each for a good-sized tree is okay); interesting growth habit; will look at home on an antique property.

I am neutral on whether it flowers in spring, produces fruit, etc.

This area has drip irrigation, is mulched/composted annually, is relatively protected from wind, and gets good sun (with some shade from large swamp maples that surround the property).

I don't know if birch would be among folks' suggestions, but if so, I did want to point out that a beautiful mature white birch installed by the prior owner had to be removed last year due to birch borer. That's where the Japanese maple is.

Please forgive the mess in the first two photos - my house is being renovated and the patio is a staging area.