I've been there.
I have been asked many times, why not send your work to some Science Fiction magazines?
The answer is I did, and I got no replies.
The problem for an outsider is you have to beat off writers that the editor knows and likes, so you have no chance of getting anywhere.
I tried several small magazines in the United States, UK, and Australia, the best ignore you, some I came across via a Dutch online magazine I wrote for years ago was no more than scams.