Alright, this is what I had in mind for your team:
As I may have mentioned, replace one of your flying types with dugtrio (likely charizard for the 4x rock weak) and give lapras perish song. When Lapras sings it's song, switch to trio and as long as you can survive the barrage you scored a free KO. It also covers the gigantic gaping electric weakness.
Consider putting starmie or Tentacruel in the spots over chansey, Lapras, or Kabutops. 3 of your pokes are stealth rock weak so getting rid of it with a rapid spinner is nice.
Make sure Zapados is scarfed and has Tbolt, heat wave, Hp Ground/ice, and U-turn. Having something that has generally good coverage and speed is a good thing.
You may also Consider Gengar or Machamp. A pretty comon weakness in your team is rock and fighting and those will cover those weakness the best they can given Kanto only.
If I had to rebuild your team, these would be the members:
Dragonite
Zapados
Dugtrio
Tentacruel
Machamp
Gengar
I have no idea how this would work (I spent 15 minutes thinking about those last two spots), but this is just a starting point.