Where are the New Year’s Countdowns in Tokyo

Hello! So I'm a new resident here in Japan, specifically living in Saitama but near enough to Tokyo. Back in my home country we'd usually watch fireworks at one person's house but living away from my family this year I can't do that. Still, I want to watch fireworks and count down to new years, even if I'm alone. I've been trying to search on Google but I mostly see clubs, or Disney? Also, there are fireworks displays in Yokohama and Yokosuka but I think the trains might stop and I can't go back home after the display since I know Japan stops trains late at night.

With that being said, I wanted to ask if there are any other places to watch fireworks displays or if I go to Yokosuka, will the trains still be working long enough to get home?

Thank you so much in advance.

by JYPinCebu