You might check out OB classifieds as board members often sell divisions of plants that have previously bloomed.
You might also look for plants that are in bloom or bud. There is a vendor feedback forum you can search to see which vendors are most recommended. Also feel free to post on the board asking about vendors
As for fragrance - a few I have can definitely be smelled from across the room - usually early in the day, one from across the house lol
Onc Sharry Baby and Onc Twinkle I could both smell from across the room early in the day (the Sharry Baby is large and had many blooms, the Twinkle was actually very small tho still had quite a few blooms on it)
Zygo mackayii I could smell from other rooms in the house in the morning and was actually too strong in the morning for me to be in the same room with it for long - after the first couple weeks it was better.
Try to choose plants that should do well in your climate / growing conditions
Good luck
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