Hi! I’m thinking about being a pen pal with a Japanese person and i have some questions

I found a website “ https://www.pfc.post.japanpost.jp/english/index.html ” I’m wondering if this is a refutable website?

I won’t lie i have no one to converse with where i live and would love to learn hands on if possible. Ive only used Duolingo to learn and would like to expand upon that, Is this a good site or is there one anyone could recommend to me?