Hi Colton,
Congrats on saving money and looking into your options while in your early 20's, many people aren't as proactive as you at that point of their life. I both live and invest in Snohomish county, and as you know, it's a large county. If the intention is to ultimately rent out the property, a key principle to follow is buying an investment where the people already are, not in fringe areas that get hit harder in softer market cycles or have to compete on rents when things get soft. Look in the communities that place people in closer proximity to great schools, higher paying jobs, and decent amenities. One single family investor I've watched grow a large portfolio emphasizes the schools above most other factors, because renters (ie. parents) will always try to hard to keep kids in schools for segments of their life, but will commute to work and amenities. This limits turn-over in your rental, which in turn reduces your expenses for cleaning up a space between tenants.
Good luck, happy to connect more if you have additional questions.