Go to Kent and talk to Jeff Boyer in his tackle shop. Washington has some HUGE Smallmouth Bass that can be suckers for a dropshot. Drive south to Silver Lake (by Mt St Helens) and fish the pads for some big Largemouths. Then there are the steelhead, but I don't know what the seasons are like these days.
January in Castle Rock is not the same as January in Texas. There's likely to be ice on Silver Lake.
Up around Bellvue there's not much Smallmouth fishing. Need to hit the east side or the Columbia for that.
January could be good for Steelhead if the rivers aren't blown out. Guided trip on the Cowlitz or over on the Peninsula could be good.
This Veteran heavily medicated for your safety. Keep me fishing and all will be well.