NPO or volunteer opportunities in Tokyo that you’ve attended to and can recommend/need more people?

Morning guys, hope you’re having a great week.

What are some of your NPO and/or volunteer opportunities in Tokyo based on your own experience?

Recently, I’ve been feeling that I need to give more to the community and help those in need in order to put my grain of salt into the improvement of society.

I’m wondering if anyone here has found something their help was needed and was overall a positive experience.

Thanks in advance for all your help!