Hey and welcome here!

If you want to write about science/technology, you should check out our STEM community Hive account@steemstem, include our tag #steemstem into your posts to receive upvotes for high-quality posts and also join our discord chat some time!
We also have a spanish-speaking sub-community ( #stem-espanol) that is run by Hive account@carloserp-2000, and lot's of people eager to help newcomers.

Also, there is this great guide that I usually recommend to new steemians, that really covers a lot of the usual questions around our platform.

Cya around!