Redside trout, on Oregon's west side, means a trip to the McKenzie River--to the east of Eugene. And not far, from the Interstate (I-5).
For steelhead, you might want to visit the Clackamas River (off of I-205). Or the Sandy River, further east. Or there is the Santiam system, to the south.
For all practical purposes, IMO, you'll be too late for Spring Chinook--and too early, for Fall Chinook. So trout and steel, will likely be your best bets.
BTW...if you're into smallmouth bassin'...the Umpqua, is a prime target. Not too many big ones, from what I hear. But many peeps have 100+ fish days, on that stream.