Your academics, SAT, and EC’s are all good. I think you’ll have a fairly easy time getting into all the UCs except for UCLA, which is one of the few state schools that easier to get into OOS than in state. Luckily, your first-generation college sort of offsets the fact that you’re Asian. To have a significantly better chance of getting in there, you’ll need to do something that stands out on your application (found a club, get your work published, etc.) or retake the SAT/ACT and push your scores up into the 99th percentile (34 for the ACT, 1480 (out of 1600)) for the SAT. That goes for the competitive southeastern schools you have on your list as well. Assuming you applied today with these stats and ECs, I’d give you these chances.
UCLA- low/reach
UCSD- high/match
UCSB- match
UC Davis- low match/safety
UC Irvine- safety
Emory- high match/ low reach
Vanderbilt- low/reach