Essentially it all comes down to your act now. Hit a 32 and up and you’ll be far more competitive for every UC. At a 27, I’d say you’re still a solid bet for UCSB and UC Davis with that GPA. Safeties, as of now, would be UC Santa Cruz, UC Riverside, SDSU, and pretty much all cal states other than cal poly slo. Decide what you want to major in and look up which CSUs have strong programs for it.