I like unlined gore-tex parkas. Then I can put underneath it a wool sweater or fleece vest if I need warmth. The problem for PNW is that often it is raining and also quite warm - so all those insulated ones just suck for barn chores or riding.
My favorite one of all time was from Land’s End 30 years ago. Alas, I do not know how to purchase its equal today. I still use it, though it is no longer waterproof, and the zippers have failed, after I added some snaps to the front. It has been the perfect mix of breathable and waterproof.
I always buy my coats in large or extra large so I can layer under them and so the air is a little more comfortable, hot or cold. (I’m normally a medium.)
I also have a long Gore-Tex coat from LL Bean that is the same, but I save it for city use.
Most of the other waterproofing I’ve tried wears off the sleeves as soon as I abrade them with a bucket handle and many get clammy and wet inside even if they are technically keeping me dry. Those are fine if I can wear the wool sweater under but not so nice if it’s 50 degrees and pouring.
Having a couple to rotate among is nice so you can wash and allow them to dry if you have to use it twice a day, thus my various experiments. Still the Gore-tex even at it’s very not nice price has been the winner. Buying in January is often a successful way to get something more affordably. February is almost too late because LOL we all know it’s not going to rain again until the coats come back in in August, and selection gets scarce (unless you can rock an extra small).