Agree with a bunch of others above, but since I also bottle dig, I like Crick Diggers, Southern Searcher, Cloverdale Diggers, Adventure4Life, Bottle Ned, Adventure Archaeology, Bill Lad Dig Fellas. RIBottleguy, Tom Salvatore too but they don't seem too active anymore. Always liked "Sick Rick" Weiner out East too.
On FB, "Privydiggers".
Generally, anybody that shows digging "in-situ'. I don't like when they only show bottles after they dig them out. I like the "thrill of the hunt" whenever possible.