I've seen jobs in Malt in English too, it shouldn't be a problem. I'm in Fiverr and Upwork as well.

Most of the clients in Fiverr and Upwork don't pay much, but it's fairly easy to find good ones that pay well (especially in Upwork).

P.S: I recommend you to submit your stories to publications, so you get more reads.

I write for this one, which is fairly easy to be accepted: https://medium.com/the-innovation

Make sure you follow their formatting guidelines: https://medium.com/the-innovation/the-innovation-submission-guide-705b0543506f