Right now, most of our curators only speak English. We are able to support a few in Spanish as well. When steem takes off, we plan on being able to curate many languages.
It would be most helpful to use the hive-122108 and steemiteducation tags. Neither one of them needs to be the first tag.
If you post on dtube or youtube, you can create a post that includes a link to your original content on those platforms.