First, you need to research the anthology's submission guidelines. This will tell you about the themes, word count, formatting, and other requirements. Then, prepare your manuscript carefully following those guidelines and send it via the specified submission method, which could be email or an online form.
The process of submitting to a fiction anthology usually involves a few key steps. You have to identify anthologies that are accepting submissions. Read their rules thoroughly, paying attention to things like the deadline, the type of fiction they want, and any specific instructions. Once you've prepared your story, attach it along with any necessary documents and send it in before the deadline.