Free: Contests & Raffles.
As a closer trip - closer than Central AK, Ketchikan is awesome, late summer for big Kings and heck you can eat the white ones there... lol.... Third week of July is the absolute best timing if your heading to Central AK on the Kenai.... Reds thick and the bigger run of Kings. I personally like the Big Sue valley late summer for Silvers, non-stop action.. So many places, so little time. Everything depends upon what you have to spend and what you want out of a trip... Sep on the Kenai is fantastic, no tourist, huge Silvers and the fattest Rainbows and Dollies in the world waiting for a pegged bead to float by them...
Reel Class Fishing Charters... The best boats and the best captains in Sitka. Was a captain with them for a couple years before I got married. They have TOP NOTCH boats, and arent affraid to go where the fish are. Derek is their best captain, and the one you want to fish with hands down. Dont let em push you on anyone else, including his brother. He is THAT much better than the rest.
I would say that your best shot at a BIG king is in the Kenai, but its not a gimme fishery. A lot of people go up there and only hook 1 or 2 a day. Most of those fish are 35-50 lbs though. Plus you'll be with 150 boats full of your best buddies. Plan WAY ahead because the river is only a few days a week prime time so you'll want to book a prime week at least a year if not 2 or 3 in advance.