here are some possibilities: This is assuming you are
zone 5.
Calycanthus chinensis Chinese Wax Shrub
Clethra alnifolia 'Ruby Spice' Summersweet
Clethra barbinervis Clethra, Japanese
Cornus sericea Red Osier Dogwood
Corylopsis pauciflora Buttercup Winter Hazel
Cotinus 'Young Lady' Smokebush
Deutzia x kalmiiflora Deutzia
Enkianthus campanulatus 'Showy Lanterns'
Forsythia k. 'Kumson'
Fothergilla major
Fuchsia magellanica Fuchsia, Hardy
Hydrangea arborescens 'Annabelle'
Hydrangea m. 'Mariesii Variegata'
Hydrangea macrophylla 'Penny Mac'
Hydrangea p. 'Pink Diamond'
Hydrangea panicula 'Limelight'
Kalmia latifolia Mountain Laurel
Kalmia latifolia 'Peppermint' Mountain Laurel
Kalmia latifolia 'Snowdrift' Mountain Laurel
Kerria japonica 'Chiba Gold'
Leucothoe fontanesiana 'Rainbow'
Pieris japonica 'Mountain Fire' Japanese Andromeda
Rosa Nutkana
rose, Nootka
Salix caprea 'French Pussy' Pussy
willowThese are specific types of each species since not all of a species respond the same in the same environment. I hope you find something on this list that will work for you. Good luck