A. There are a few fragrant deciduous shrubs to try in a shady Zone 5 site.
A few suggestions:
Daphne 'Carol Mackie' — beautiful variegated foliage
Azaleas - 'Northern lights' series — Mandarin and Orchid are best
Philadephus (Mock Orange) — citrus scent, white spring blooms
Summersweet (Clethra) — will tolerate even full shade, native