Five

But i will watch the movies on my Mac & stream sound over Wi-Fi 

Using what software/hardware to provide a connection/audio-output to your Fives, which by all accounts will play the sent audio in stereo anyway, that’s if they’re setup standalone, or paired? You will need a mentioned Sonos HT product to get 5.0/1 surround sound.

Was goin to buy a pair of Sonia five with a subwoofer & add rear channels later will watch movies on mac & srream sound over Airplay to the setup, how is that gonna work? Basically am buyin the Fives & a sub for music & was thinkin of  a pair  of One SL for rear speakers 

It isn’t. However many times you ask the question, the answer will be the same.
For a home theatre system you need a home theatre device. From Sonos, that means Arc, Beam or Ray. Either of those give you your front 3 channels, and you can add two rear speakers and a Sub to that. The rears could be your pair of Fives. You can still play music through that system. 

Ok, thanks

No it won’t work for HT surround sound - sorry you will need one of the Sonos HT products - those products receive the 5.1 audio channels and immediately distribute them to ‘bonded’ surround speakers/sub over a 5Ghz Ad-hoc WiFi network.
 

The Fives do not have the ability to handle all 5 HT channels and the .LFE channel in that way… So you would just get 2ch stereo playback over Airplay. You may, from time to time, encounter some lip-sync issues too with the video on screen, at least I’ve personally seen that issue with Airplay in the past. 

Thank you