I don’t see where you live in Oregon? You want to pick native species that will do well in your climate. There are probably Native Specie Garden Clubs in OR, or contact your county at agent, or maybe a local college. There are LOTS of groups now trying to restore the natural landscape. I live in Colorado and I can buy packets of true native specie grass seeds from various sources.Ideally, I'd like something that looks similar to a wildflower meadow, without being too tall, that needs as little mowing as possible, as little water as possible, while staying green enough year round to reduce wildfire danger. It should require zero fertilizer beyond mulching the grass clippings. If I have to spend time or money on a lawn, at least it'll be pretty and useful to the bees and butterflies, instead of basically organic astroturf. Doesn't need to be resistant to high traffic or be tough at all, the dog runs around out there and the occasional mowing is the only traffic it will get.
If it needs to be mowed every month or every other month, that can work out. I'll be looking at modifying my mower to mow at 8-10" tall, so the wildflowers have a shot at survival. Likewise if it needs watering during the middle of summer to stay green, that can be work out, but the goal is no mowing and no watering. Even incremental improvements heading that way would be hugely acceptable.
Looking at overseeding with something like this:
https://northwestmeadowscapes.com/collections/eco-lawns/products/pollinator-lawn-overseeding-mix
These would also be options:
https://ptlawnseed.com/collections/eco-and-alternative-lawns/products/fleur-de-lawn
https://ptlawnseed.com/collections/eco-and-alternative-lawns/products/pt-770-water-less-eco-lawn
Please share your thoughts or ideas.
But be warned, visually you might not like what you get. I have a yard of natural grasses and it looks over grown and unkept. Fortunately that is acceptable here. In CO there is a big push to grow native and take out anything that has to be watered.
This can also be a little more of a fire hazard, IMHO. I would definitely look at adding some rocks in to your landscape, especially right next to your house.