Were can i find a japanese penfriend?

Hello im searching for an japanese penfriend.
Is it possible to finde a penfriend here or do i have to search on other websites ?
And if its possible were can i find a penfriend here?
Please help me and thank you for your time reading this!

FaceBook is one of the Best option to make Friendship with Japanese.

Facebook is a good idea.
I've never had penfriend but this site will help you.
http://www.penfriend-club.com/result.asp?batch=10&page=1&sex=&age1=0&a...
And most popular chat app in Japan is LINE https://line.me/en/ you can find friends here, too (needs to add to friend list using QRcode or username. That kind of information is on the internet).