So which gods did receive children sacrifice?
"Receive" is a complex word.
Were child sacrifices done by nations or tribes that austensibly followed the Gods? Rarely, mostly in some Meso-American cultures.
I wouldn't trust anything about "child sacrifice in Canaan", as jews lied and projected a lot.
That being said, just because young blood magick technically exists (primitive and weak in comparison to what real meditation can do) doesn't mean the Gods endorsed it.
In the case of people like the Aztecs, superstitious ignorance got the best of them, and they ran themselves into the ground via karma by doing child sacrifices, despite the Gods sending multiple omens to stop and even directly telling the priests this is unnecessary.
"Why still do it, then?"
Hierarchy exists in life, and some nations are just more stupid than others. If you're not aligned with solid Divine principles and not evolved enough as a nation, it is very easy to ignore or dissonance away these things.
And the Gods, for better or worse depending on who you ask, have created a Universe that directly and very fairly punishes and rewards behavior, so they wouldn't directly stop this.