There’s lots of scents that give that feeling, but not a lot of them have specific memories attached to them. The tickling, almost acrid warm scent of Sees’ smudge stick, the damp, old-growth scent of a long rain in Black Marsh, the bitter, dry scent of trauma root growing in the Ashlands all have unspecified memories attached to them, mostly just being in the places the scents are associated with.
There’s only a few scents that trigger specific memories. The smell of warm, caramelized sugar usually brings up the night of a bar brawl in a tavern in Elsweyr, followed by the usual generalized memories of traveling with the source of that scent, the Redguard who saved his ass from said bar brawl. In general, the scent brings back those good days traveling in a dry wasteland that was nine kinds of ‘oh fuck me, sand’, but made less awful with a quick grin and good-natured teasing.