Preferably nightstand size.

USB to charge phones or tablets but also can play music through USB for those devices. Bluetooth pairing for music playing too

Bonus if has a clock display and I guess alarm clock ability (most would use phone for alarm though)

Portability and or battery powered is not necessary at all

I can google it but looking for anyone's personal experience

In my hotel room at CEDIA there is an alarm clock from ihome that seems to have all of that. Model HBN-21

Not sure on usb music and may be newfe models now.

I would think a trip to Best Buy or Walmart would be your best bet. Plus you can return if you don’t like it. And you can be entertained or sickened by the sites in those places.

I have had, and given to family, 3 Sony SRS-XB models. Liked the sound quality over other brands. The upper models will charge devices via USB. Bluetooth connection is a breeze. Haven't found one with a clock function but I use my phone or ask Alexa for the time. Lazy that way in the middle of the night.
They won't play ultra loud though.

Maybe this, then: [Link: androidpolice.com]
Harman-Kardon Citation 500.

Says [Link: androidcentral.com]: