How to meet people as a foreigner in Tokyo?

I just graduated from university and I’m moving to Tokyo for a year or two on a working holiday visa in a month. I’m getting things in order right now, but I’m wondering how other foreigners living in Tokyo meet people? For reference, last year, I studied abroad in Korea but I was still a student so the people I met were also students and the majority of them were also international.

This time around, I would want to meet both locals and internationals. I’ve been doing research and I’ve heard that Japanese people tend to be really introverted and would rather keep to themselves, meanwhile I’m the opposite. In addition, I’m 22M, like soccer and basketball and I like to go out on occasion just in case you need more details. So if anyone has any suggestions or tips of what I can do, places I should go or even apps I should download, that would be very much appreciated.

by SSJ-_-shinobi