The Big C, the WIlly, Sandy, Clack, Hagg Lake, and the coastal streams like the Wilson, Trask, Kilchis, Miami, etc. Plus the coastal lakes too. This time of year think Lakes for warmwater species, and streams for trout, steel, nooks and ho's. Good luck.
P.S. Get yourself a copy of "Fishing in Oregon", 11th Ed., by Maddy Sheehan and / or "Complete Angler's Guide to Oregon", 1st or 2nd Ed., by John Shewey. And get the "bible" of stream fishing in our area: