Health coverage post-layoff

I’ve been informed my position of nearly 10 years has been eliminated, so I will soon be out of work. I’m in my early 60s so the future is uncertain (goal is to find another comparable role as quickly as possible, as I am in no way prepared/ready for retirement, but this could take some time). Given my age, where I live, and the activities I engage in, going without health insurance would be a huge risk (e.g. one rattlesnake bite treatment could cause me to lose my home). I have an emergency fund + a relatively small 401K, but regular living costs will deplete it fairly quickly in the scheme of things. I own my home with no mortgage.

I have the option of continuing my current coverage (HDHP + HSA… not sure of the company as it’s been a few years since I used it) for about $560/mo for 18 months. I’m in California so apparently there’s also the option in “Covered California” of a PPO or other plan thru Anthem or BC, for anywhere from $470-700+ per month. I currently have no ongoing healthcare activities – this is to cover for catastrophic issues like an accident, animal attack/bite, or an unforeseen major illness.

I’ve always been covered by employer-sponsored plans, and during prior periods of unemployment I just went without insurance, but as I said at this point that seems too risky. How do I decide which path to take to ensure I have the right coverage, optimizing the cost, and avoiding any hidden gotchas? Is there anyplace to turn for advice and/or coaching to ensure I make the right decision?

Thanks in advance!