Starlaine, Emerald, Northstar, Ravensown, Sherluck, Wingate.
I know several of these breeders have plans to breed in the next year. Take a look at their websites, do some research, and decide what kind of Dobe you are looking for (pet, agility, show, etc.) There are lots of threads on DT on most of these breeders.
There are several reputable breeders in Washington state. I know there are other threads on here with suggestions, but I listed a few that come to mind below. There are probably others I am not thinking of.
Do you already have a clear idea of what you are looking for in terms of pet/show/performance/working dog, etc?
There also some good breeders in Oregon, and I'm sure other adjacent states to WA as well.
Check out the DPCA breeder referral website as well. There are some good threads on here about what to look for in a reputable breeder that may also be helpful.
Hopefully others will chime in as there are several members on the forum who have dogs from the PNW.