Any tips on soothing baby other than the obvious feeding, diaper change, rocking, and music ?

Swaddle. Make shhhhing noise in their ears and rock a little bit while shhhhing. That should work. Here's a link https://youtu.be/rwO64sv7usw

Try swaddling

driving or take a walk with the stroller lol

Like @steph11 said, I sometimes would drive with lullaby music playing when he was a newborn, it put him to sleep!

ohhh shoot! maybe a drive or a swing.

@steph11 I will definitely try that once his umbilical chord falls off, thank you!

try taking a bath with baby. that's what I do when all those things don't work usually with in 10 min after getting g out she's sound asleep