If your heading down the coast there is only 1 option, Umpqua. Every Steelheader worth their salt needs to fish the NF Umpqua once in their life. The fly water is trully magical and special beyond words. Spend a night at Steamboat Inn(you wife will love it) and fish the holy water.
Wholeheartedly agree! My wife and I spent part of our honeymoon there. First steelhead that I ever landed was in the Kitchen Pool on that river (before my honeymoon). It’s a magical place.