Here is the problem with UW as a safety. You don’t know until March if you are accepted. If anything goes wrong with the process and there are no seats left. you don’t have a sure seat, and that’s it . THat’s why Ihate UCs as safety schools. Sometimes things get fouled up through no fault of anyone but with state schools, often , full is full. Try again next year. I’ve seen it happen. UW does not have Early or Rolling admissions. Find another safety school that will let you know by year end if you are accepted so you have somewhere to go if all of your other schools reject you and something goes astray with UW and you get nothing in March.
Ordinarily, a rolling admissions to a state flagship or other school that is an easy in for a top student is a great safety. In my area, EA SUNY Binghamton and maybe another less selective SUNY are top choices for that, though top kids pretty much know that Bing is an in for them and they’ll know otherwise before year end. The rest of their choices are similiar to OP’s A lot of them end up at a school like NEU , which has become increasingly selective these days, or Binghamton, or they start looking for another safety when they have an ED or EA reach or Target that defers them as a reality check. I’d apply early to NEU (early action) as a match school, though with its accept % this last year, its becoming a bit of a reach to anyone, and another school, one that will certainly take you, has the courses you want and that you feel you can live with if the lottery tickets and NEU don’t pan out.
I’m assuming you can afford all of these schools. If not, there is a whole other issue here.