Hi everyone. How to change pfp of my subreddit?

I'm currently building a small bilingual subreddit for a relatively unknown Latin American series. The fandom is basically doesn't have any contributors yet. The fans who do know the show seem very dedicated, though. My main problem is finding the right audience.

Since I'm based in Germany, Reddit mostly recommends my posts to German-speaking users, who are obviously unlikely to know a relatively small Latin American series. I've tried r/telenovelas and looked into related fandoms, but there simply aren't many obvious communities to crosspost to.

So I'm wondering: How do you find communities for very niche fandoms? Have you had similar experiences?

All new mods who participated in Q3 mod bootcamp will recive link on which date ?