https://mynorthwest.com/local/vancouver-second-largest-city-wa/4065389
Tacoma is part of the Greater Seattle Area. Spokane is far enough east that it already is the biggest city & commercial center for Eastern Washington. So some day there should be over a million people over there.
Vancouver, WA is part of the Greater Portland Area, and has lots of potential for growth. Perhaps someday Vancouver might have buildings as tall as those in Portland. Ultimately, V,WA should have buildings as tall as the tallest in Bellevue,_Washington.