Koreanspice Viburnum (Viburnum carlesii), most definitely!
Orienpet Lily (Lilium 'Conca d'Or')
Lily (Lilium 'Casa Blanca')
Rose (Rosa 'Sunsprite')
Hosta (Hosta plantaginea)
European Bird Cherry (Prunus padus 'Summer Glow')
Russian Olive is nice, too, for a week or so in spring, but it's taking over our wild areas, so it's not something I would ever purposely plant.
In between scented bloom periods -
Citrosa Geranium (Pelargonium citrosum)...mmmm, love these leaves... just slightly bruised...
Mints, especially when freshly mown, and other yummy herbs, too.
