The exodus has been soundly proven to be a myth. [1] But assuming it isn't, there aren't many better places to go. Texas is a joke. Traffic is worse than LA in the major cities and it is run by Christian zealots. Yeah maybe you pay fewer taxes but the other quality-of-life tradeoffs aren't worth it.
[1] https://www.sfgate.com/local/article/California-exodus-is-ju...