Blog/Article Writing Website

1.

You can become a freelancer and sell your services at the many freelancer sites

2.

There a few sites in which you contribute content, and then you can join one of the sites in which you publish to a community, and then you are paid or rewarded by how many inside the community that read what you write. This is one such site, but there are many https://medium.com/explore-topics

3.

You can seek out publications you to which you think you are capable of producing content, and email them your stuff, in your case perhaps a financial news site.