Which rail pass is best for this itinerary?

Hi

I'm coming to Japan in September 2019 for just over 2 weeks and this is my itinerary:

20 Sept - 23 Sept: Tokyo
23 Sept - 27 Sept: Kyoto
27 Sept - 30 Sept: Tokyo
30 Sept - 2 Oct: Nagoya
2 Oct - 6 Oct: Tokyo

Which rail pass would be the best for me to use? We will be exploring Tokyo (visiting Disney etc) as well during our stays in Tokyo.

Thanks
Danni