Coyotes are relatively plentiful throughout Oregon, but there isn't much hunting for them that I know of west of the Cascades. I would try talking to any local ranchers you might know. If there are coyotes close by their livestock will be the first to know about it.
Coyotes can be hard to hunt here on the west side because the timber is thick and makes spotting them hard to see unless you catch one in a field or a clearcut....or on a road. I've lived on the Oregon coast nearly my whole life and I've seen maybe 4 or 5 coyotes on this side. Try calling during the winter time that's how they do it on YouTube lol