"BEST" is hard to pinpoint --- Nestle NAN is hypoallergenic and they say close to the texture of breastmilk, Hipp is organic, etc. But I think at the end of the day it also boils to down to what your baby likes aka "hiyang". My daughter took to Progress Gold.
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Enfamil A+ is highly recommended and pretty ubiquitous. You should be able to find it in just about each and every grocery store. Also, it's one of the most touted formula products by doctors here in the Philippines.