There are many Islay whisky's and they all typically have a strong peaty flavor. I have never had Bowmore, but some popular options that are typically available locally are Lagavulin 16 and Laphroiag. Talisker will also have a similar flavor, but it is from a separate island.
http://whiskey.underthelabel.com/d/c/Scotch/Islay
I not sure of the local shoppes, but I typically go to The Party Source directly on across the river from Cincy in KY. They have a huge selection.
EDIT: https://www.thepartysource.com/express/results.php?i=bowmore