Latakia is a very good natural snuff. Irish High Dry Toast is a very fine snuff, and fine in every sense. Wilsons, Sharrow offers various kinds of Irish Toast. Only later did it come to be called Irish High Dry Toast. Santo Domingo, still available from Sharrow.
Many perfumed snuffs are redolent of a whore's reticule.
Of medicated snuffs the most popular is menthol. I do not know if they have any medical value. White snuff is nasal snuff, but not tobacco snuff.