Way too expensive for average person to live in Seattle, top 10-15 in some rankings I think. 2nd most expensive place in Washington, only Mercer Island is more and that is very close. Downtown area has gotten a lot rougher and more dangerous in recent times. I used to love living in Queen Anne area of Seattle, now I can barely afford to visit.
Depending on what resources they have and work needed Tacoma, Everett and Bellingham are nice, reasonable choices. Tacoma is 2nd biggest city and 33 miles south of Seattle. Everett is about 30 miles north and 3rd largest city. Bellingham is around 90 miles north of Seattle, 21 miles south of Canadian Border. All 3 have their charms and problems, depending on what they are looking for. I personally like Bellingham best because of its location, lots of beautiful outdoor activities and scenery. It is isolated and a long drive to anywhere else though.