No one mentioned Winchester Bay RV Resort, a private park but nice location. Just north of Florence is Sutton Lake. Just south of Newport is South Beach. Don't know what rig you have so Sutton may be small spaces.
There is a lot to do near Newport, don't miss the aquarium. If you camp near Lincoln City, the Otis Café is famous for breakfast. Whale watching out of Depot Bay, Glass blowing in Lincoln City. Several trailheads with parking along the coast. Ft. Stevens is nice and a short drive take you to Ft Clatsop a replica of the winter over site of the Corp s of Discovery before heading back East. Up river from Ft Stevens is Bonneville Dam and Beacon Rock St Park on the Washington side. further east is Hood River and the Full Sail Brewery.
South and East of Tillimook is the Pelican Brewery in Pacific City I believe.
Want more PM me.