Depends upon what you want to see and photograph.
We just completed a 24-day 2,700-mile trip from Los Angeles to Bend, Oregon for the eclipse, then up to Coeur d'Alene in northern Idaho, over to Flathead Lake in Montana, then down through Utah and into Las Vegas.
Yes, the entire area is blanketed in smoke. Large landscapes and majestic mountains are totally unphotographable. When we were there Glacier atonal Park and Crater Lake National Park were pretty much lost causes. But there are still plenty of people and places and details to see, to enjoy, and to photograph.
And there are possibilities to use the haze to advantage in mid-distance photos. I took a very nice photograph of one of the bridges over the Crooked River and the smoke/haze added a sense of infinite mystery to the background.
Consider a trip through the Columbia River Gorge between Oregon and Washington (best views are heading east along the Oregon side on I-84 although difficult to pull over for photos). The north side along Washington 14 offers some nice views and interesting places like the American Stonehenge in Maryhill, Washington, but overall less spectacular.
Visit the town of The Dalles along that route and walk through town looking at the murals and buildings.
Along the Oregon coast be sure to visit Astoria and the Astoria Column and Tillamook, Oregon (especially if you like aircraft museums and great ice cream!).
In Seattle, Washington there are great sights and pictures, be sure to visit the Pikes Place Market. And the Olympic National Park's Hoh Rainforest Trail.
Oh, and if you love trains visit the California State Railroad Museum in Sacramento, California!
Life and photography are what you make them, and smoke and fires need not ruin your trip. Enjoy!