Nicotiana affinis, Eleagnus umbellata and angustifolia, some of the herbaceous clematis, Dianthus 'Mrs. Sinkins' How many am I allowed?
You absolutely MUST have Hesperis Matronalis (Sweet Rocket) - it casts its perfume on the air and it's so fragrant that it stops you dead in your tracks and you look around to see where it's coming from (and wonderful for attracting pollinating insects and the host plant for orange tip butterflies too)
It loves damp semi-shade and self-seeds
i have a weakness for mock orange.....easy to grow too.
Sweet peas, especially "Cupani" summer jasmine, especially the pink one. The yellow fowering current is very sweet smelling unlike the pink one.
Oh and of course lots of lavender.
Have a lot of mock orange J as, from one shrub given to me by my Dad many years ago, I now have about 6, most down one side where the new fence is going up. I just love the smell and it's a lovely looking shrub too, IMO.
Some of the scents from my roses just keep you tied to the garden.
baskets of trailing petunias near the front door greeet you with a lovely sweet perfume whenever you walk through.
Oriental Lily of all colours is a must have for summer scent!