...and it's all right here.
Lovecraft's own inspirational story, "The Shadow Over Innsmouth" - curiously, one of his own least favorite, but one of his best - leads off this terrific collection of clever spin-off tales by contemporary authors on the same theme: namely, that there are isolated seaside places around the world where the inhabitants not only pray to, but interact with, ancient subaqueous demon-gods from other worlds.
Many of the tales are more or less sequels to Lovecraft's seminal story, set in and around Innsmouth itself, the fictional Massachusetts town the author first "sailed" the concept in. Each of these reads very well as its own stand-alone piece, successful entirely independent of Lovecraft's story, but all the more entertaining for being one way or another connected to it. Other tales, such as Ramsey Campbell's "The Church In High Street," are set in other locations, like the decayed, dockside areas of Great Britain, where similar interbreeding with noxious hellspawned water-gods also is occurring. One especially good story, Kim Newman's "The Big Fish," actually reads like a credible direct sequel to Lovecraft's original, and is all the more perfect for essentially performing like a 1930s noir-horror film. Even Neil Gaiman gets in on the act, with a skin-crawling little bit of nastiness about an Innsmouth descendant coming to terms with his gruesome genetic heritage.
One thing you can count on, in this collection: something in it will definitely appeal to your Lovecraftian tastes - so long as that taste is for fish.