Heffner Management, Seattle, offers an in-town board and a location in New York, The models are very good, outstanding images, some are captured posing well, Models with Instagram pages:  Web:  www.HeffnerManagement.com
SMG Model Management, Seattle, Looks like a good agency, has boards for Classic, Development, Lifestyle, Main-board, & New Generation, some models have Instagram pages. Web: http://www.SMGModels.com
TCM Model & Talent, Seattle, Fair selection of models, did not see Instagram pages, Web:  www.tcmmodels.com