Here's a cider/maple brine I pulled up awhile ago will either do this one or Weber's Brined and Barbecued Turkey with Pan Gravy which I've done before and is very good. The first one will keep you busy for awhile.
https://www.myrecipes.com/recipe/map...-brined-turkey
https://www.weber.com/US/en/recipes/...eber-9139.html