Brining is a great source of flavor but mostly it is for "juiciness". I wouldn't call it a marinade - it is a brine. Water + salt = brine. Most people add brown sugar and sometimes that's all.
I use: apple juice, kosher salt, brown sugar, smashed garlic, fresh rosemary, fresh thyme, lemons, limes, oranges, black peppercorns, and bay leaves.
EDITED TO SAY: I see others have given you the answer you need - I had to wait on customers! LOL
"Count yourself...you ain't so many" - quote from Buck's Daddy