Looking for an all-in-one just-add-speakers streamer for my son to take to college

OP didn't mention budget, but I am very pleased with Arylic for my "not the main system"  $153 on sale
https://www.arylic.com/products/arylic-a50-wifi-bluetooth-multiroom-full-digital-hifi-amplifier-with-airplay-dlna-multiroom-control

i have their streamer on a PA system in the garage.  I also have their bluetooth 50W amp driving some Boston Acoustic CR7 on the porch .  The link above is streamer plus amp.  I don't have the latest BT source (iphone) so when I say that  BT sound is just "ok", maybe that is dated.  The 50W amp sounds very good with an ifi DAC on the iphone and its analog inputs.

Streamer + powered speakers, or streaming amp with passives.  

NAC C700 would be as high up as I'd go. :)

AUDIOLAB  OMNIA dealer demo on sale , almost half price from MSRP

Reg $CDN 2800 ….. now $CDN 1575= $USD 1140 

https://www.canuckaudiomart.com/details/650039307-audiolab-omnia-integrated-streaming-amplifier-with-cd-player-demo/

Depending on your budget, I’d consider the Bluesound Power Node.He can use Internet Radio, Pandora, TuneIn, Radio Paradise,(Allfree) and Amazon HD, Qobuz and Tidal and a bunch more.

And as far as speakers, The Klispch RP 600m ll’s get great reviews are very reasonable priced.

All the best.

KISS - keep it simple and inexpensive.  My daughter is running KEF LS50s off a BlueSound PowerNode and is very happy with the setup.  I would keep the investment as low as possible, unfortunately theft is always a concern.  Keep the system as minimal as possible, there is never enough space in a dorm room.  A pair of active speakers that the user could cast Spotify to would be a good consideration too.  Good luck and cheers.