I’m sure you realise the Sonos and Bose systems are incompatible for a mixed single-controller system? Sonos do their own home theatre systems so you can use them with your tv, but not with your existing non-Sonos kit. The Amp does enable connections to some other audio components. Have you looked at the Sonos website? There’s lots of helpful information there, under the different categories. 

I have heard that the port might be a good alternative but does it give surround for music?

The Sonos Port provides a stereo signal. It does not handle more complex codecs. 

Does anyone of the sonos devices work with surround?

As advised there is loads of info on the Sonos Website and shop:-

https://www.sonos.com/en-us/shop/home-theater

There is the Ray, Beam, Amp and Arc.  You can then add other Sonos Speakers and Subs to make a full surround system.   The limit being the size of your wallet.

Mod Edit: Changed Roam to Ray

However, none of them would interface with another company’s system, such as BOSE. The closest you could possibly get would be a Sonos Amp, powering surround speakers made by another company, but those other speakers would need to be passive, not self powered.