No best milk, just suitable milk. You have to trial and error to see if your newborn can accept certain brands of milk. My newborn used to drink NAN Optipro HA 1 and transited to full BM after 1.5 months.
You can view the below article to roughly compare the prices. Prices should increased by a few bucks now.
https://www.singsaver.com.sg/blog/milk-powder-baby-formula
YANA