Try Northern California around San Francisco if that is an option. Little bit colder but still an awesome area. If EMS is one of the main factors in your move the protocols/pay are better than So Cal as well. If advise you about cost of living but you are coming from NY lol. Companies i would advise you looking at are AMR, Rural Metro, and Paramedics Plus. American Ambulance in SF too if you want to work in the City.
I hear good things about American Ambulance in Fresno and Kern County; but if I'm being honest. .. imo Fresno and Bakersfield are the two armpits of California and that is why they are so affordable. A lot of people seem to share that sentiment.
Personally, I wouldn't move solely based on an EMS job. I'd move somewhere I want to be and then figure out how to make it work from there. No offense to Oklahoma or Texas, but I'd gladly pay the sunshine tax to take advantage of everything Cali has to offer. When it comes to things like the Pacific Ocean, Redwoods, desert, mountains, and places like Big Sur, Napa, Tahoe, and Yosemite (to name a few) it's easy to see why California can be paradise.
Also San Diego is one of the best cities I've ever been to. Too bad the pay for EMS is terrible down there as well. Love NY too. But if you're an active outdoorsy kinda person then it is hard to beat the Cali nature and weather.
Yeah I'd try to either get on with a fire department in so cal or move up north.