Tips to get detergent smell out of clothes?

Dani

I was gifted a truly amazing amount of baby clothes from friends with older kids, and I'm so grateful! However... They all smell strongly of scented detergent/fabric softener, which really bothers my nose. So far I've tried:

Washing in hot water with vinegar.

Washing with Oxy clean.

Both at the same time.

They still smell... Not as strong, but still there. Any ideas?