Team.
About a year ago I took the plunge and bought a Celestron Travel Scope 70, really enjoyed using it in back garden and trips away. Mainly used it for moon and Jupiter (was and still chuffed to see the four pin pricks of moons). I am looking to see a bit more now and would really like to see more of Jupiter and Saturn and some deep space stuff (maybe M31, M33, M51...) so I ma looking to buy a more expensive scope with more power. The caveat is that I live South London so its not hugely dark sky. I also have three kids and really have to choose my moments so need minimum set up, still a complete beginner to all of this.
I have been looking into a Meade EXT90, Orion Star Gazer IV150, Celestron 4SE/5SE/6SE or a skywatcher skymax 150 pro. I like the look of the celestron's as I am really looking for something very easy to set up, lots of power but with some software to help me find objects for the near future till I find my feet. Just curious to see if anyone had any thoughts, advice etc. I'm much obliged if you can assist.