Starting from Zero

Why do you need a CD player if you will be streaming music? 

Also, you may not need a receiver. If your goal is to play CD’s and stream music, a single or pair of SONOS FIVE’s will do the job. You can plug the output from any CD player into a FIVE. If you have additional SONOS players the music can play in any combination of players.

I wanna stream, play cds, and also listen to the radio.

I wanna be able to stream, play cds, and listen to the radio as well.

99% of the radio stations on the air can be streamed via TuneIn or other services.  CD’s can be ripped and played from your library.  When I got Sonos, I connected my CD player to my ZP80.  After I saw how easy it was to stream, I used the CD player exactly zero times.  And that was in 2008, before most streaming services were around.  

Hi. If you think you need a CD player and receiver, and Sonos speakers for that receiver, you haven't done any research into Sonos. I think you should read the basic info on the Sonos.site.

I did read, and it seems like Sonos would be a good way to listen as opposed to Bluetooth or bookshelf speakers. I'm here trying to find this stuff out.

OK here are a couple of key features of Sonos:

1.it isn't designed to be used with physical media like CDs. It plays music files. You could rip your CDs or just stream. 

2. Sonos speakers are amplified speakers  They cannot be used with a receiver and don't need a receiver. 

But if you like playing your CD's, Sonos has two devices that can bring the CD-sound into the Sonos universe: the Five and the Port. Both have an analogue in that can be connected to the CD-player.

Though streaming from TuneIn, Spotify etc. is fine, I like to (have the possibility to) play my CD's too. For this I use the Connect (Gen 2), predecessor to the Port.

The beauty of Sonos is that you can start small and build up over time.  I would begin with a Sonos One and see how you get on with it.  You can stream radio and services like Spotify and Amazon Music (given a suitable subscription).  If you are sure you want to play physical CDs (and that’s a perfectly valid preference), then go for a Five, as that has an analog line in to which you could attach a CD player.

Btw, Most Sonos speakers do NOT do Bluetooth.  Both the speakers I mentioned are Airplay 2 compatible (although only useful for Apple devices, obviously).