I think "earthy" means different things to different folks. To me, "aromatic" and "earthy" are almost mutually exclusive...but that prolly just means I don't have the same definition of "earthy" that you do.
Nevertheless, if I had to pick something that I might consider to be both sweet (but not too sweet) and earthy, I'd probably pick something with Perique (for the earthy part), and Virginia+Burley for the sweet (but not too sweet) part. Some examples that come to mind are Cornell & Diehl's
Haunted Bookshop and
Trinidad.
Trinidad also contains Cavendish for a little more sweetness, which is offset by the addition of Deer Tongue for a little more earthiness.
But neither of those are aromatics. I'm not sure I know of an earthy aromatic, so I'm only guessing at what you mean. But perhaps the closest thing I can think of that's both aromatic and earthy is L.J. Peretti's
Blend D.D. It's definitely an aromatic, but it's one that doesn't have the cloying, syrupy sweetness of many aromatics.
And just in case none of those are on the mark, I'll take another wild-assed guess and suggest Gawith Hoggarth's
Coniston Cut Plug. It's a scented broken flake, not really an aromatic. But it has its own natural sweetness, and plenty of what I would call "earthiness".
I hope that's of some help.
:joker: