Since you are not ready to move for retirement yet, you need to do the following: Disclosure - My husband & I retired 2 years ago.
Visit different neighborhoods and spend time in local grocery stores, take walks, drive thru the side streets, is there activities for you to enjoy, etc. In grocery stores, compare prices on items you currently buy with prices in CA.
What will your retirement income be like - Social Security, savings, profits from sale of your home in Laguna Niguel, retirement accounts? Will you need to work part time? Full time?
What will your tax situation be like? I know Oregon has no sales tax BUT is their income tax higher than CA? How much are property taxes on ranch homes and town homes? How does that compare to where you currently live?
What do you see yourself doing everyday in retirement? Start planning a daily itinerary of what you intend to do. Staying home relaxing is NOT an option! Will you have the income to follow thru OR will you be restricted to staying home and watching TV all day because you don't have enough money saved. One option is to volunteer several days/ week. If volunteering, research what organizations you want to volunteer in.
Research your new location for senior services. Are services for seniors sufficient for your needs.
On a personal note, we live in a suburb of New York City, meaning this area is very expensive and not ideal for retirement. We receive a pension which makes it affordable to live here otherwise we would have to move out. Others have accumulated equity from the sale of their homes + have retirement accounts so they can afford to retire here. Many others have retired in Florida but they have a home up north to escape Florida's steamy hot summers. On a daily basis, we volunteer 3x / week for Meals On Wheels, take walks, travel, errands, occasional entertainment, read, computer, TV, spend time with family, etc. We don't work.
For now you don't need to contact a realtor. They are only interested in owners who are selling today and packed up to move out. Enjoy retirement! I will admit it's a huge change and it requires an adjustment period (you need at least 1 year to adjust). Make sure you keep a daily financial budget - this helps us a lot and record everything you pay cash for. One unexpected change was your co workers / colleagues don't want to keep in touch with you. Several retired people told me this in addition to our experience. You will need to make new friends and acquaintances. Review your finances to allow for price increases, tax increases, healthcare costs, activities that require money (especially if you are not paying for it now), etc. Research Medicare and know what it covers and does not cover. Research the costs of supplemental health insurance plans and what they cover and don't cover.
I know it's a lot to do and research BUT I guarantee you will be so grateful to do this BEFORE you actually retire.