It's pretty straight-forward. Write a paper, submit it to a journal. To have a better chance to you need adhere rigorously to the submission guidelines. Exp

It's pretty straight-forward. Write a paper, submit it to a journal. To have a better chance to you need adhere rigorously to the submission guidelines. Experience helps in complying with the various requirements, so visiting a local university and having an informal chat with a late stage PhD candidate or a professor will help. Buy them coffee, or a beer. I've published from outside academia and it's fairly simple. The real test is whether the paper is worth publishing, and whether it's a good fit for the journal to which it's submitted.