Perhaps a mock orange? Shrub with a lovely fresh scent. It has done quite well for me in a pot for a number of years now. And survives outside in winter. It blooms on new growth, so can prune very hard each year. Pretty much takes care of itself.

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PV

You might enjoy Mirabilis jalapa, (4'o'clocks) especially if you work during the day. Easy to grow from seed, and forms a large perennial tuber over time. You can keep or discard when frost threatens.

Petunias might be a candidate although not everyone thinks their aroma is a good one, and not all petunias are fragrant.

The Jasmine nitidum shrub I got a couple months ago has been blooming constantly. I would recommend smelling a bloom before buying though. The scent is different from the classic sambac. I love it, but have read comments from those who don't.

Do you have any interest in savory aromas, or just floral? Some herbs can provide intense scents. (Say that 3 times really fast!)