Did a search of this site on "brine, molasses, beer, rosemary" and only this thread comes up. You might try to search on various versions of that if someone doesn't drop in with a link.
Or make your own. Take any brine recipe, maybe cut the water in 1/2 and substitute beer (or maybe on 1/4) I think the beer and molasses would overpower any herbs.
Turkey is cheap enough to practice on.