Where are the places to shop for toys? Is it cheaper to get it online, for example Amazon? Will the shipping fees be exorbitant if I buy from Amazon? :)

I always buy my toys from carousell because there are many sellers there who have brand new toys which they receive as gifts and they don't want. You can buy pre loved toys if you don't mind too. There are also a couple of sellers on cArousell directly purchasing toys from US so brands like fisherprice will be cheaper.