You might want to try one or more of the MacBaren seven seas series. They are available both in bulk and tinned and are reasonably priced. At a higher price, Dan tobacco blends Milonga (vanilla caramel) and Devil's Holiday (sweet berry) are great. Be mindful though that particularly D.H. is a love it or hate it blend and is stronger in every way than other aromatics. Hawky's suggestion regarding Blue Note is also a good one. Dan tobacco uses high quality tobacco, topping and casing. They are generally more expensive but worth the price for the quality.
My all time favorte bulk aro has to be a mix of Lane's 1Q and BCA in a 50-50 mixture. IMHO, You can't get any better than that in a bulk aro...I also have developed a liking for Sutliff's African Queen and their Sunset Rum. But these days, more often than not, I smoke English/Aromatic, split the difference blends, such as Lane's HGL or Sutliff's 504C or Kramer's blend for Danny Kay. I find that they smoke cooler, are more satisfying and unlike even the most mild aro, they have no bite no matter how hard you push them.
I also like Borkum Riff Bourbon, but I think of it as a pouch rather than a bulk tobacco. Bulk I think of as bought by the ounce and shipped in a ziplock bag. I'm splitting hairs perhaps. I've not encountered aromatic tobaccos in bulk, except for these pouch blends, that I enjoy as much.