Great suggestions so far and l personally believe the two key point that are present in all the suggestions above are „Reading and continues practice“.
I would also suggest „AuthorAID“ which is an online platform which provides mentoring as well as free online research communication courses for researchers.
Read read read and start writing something down- it all starts there.
There is no perfect research paper, so don't kill yourself trying to be a perfectionist. Just try and ask your colleagues to criticize your piece of work....surely this will yield good results at the end.
I believe that the book Wallwork, A. (2016). English for writing research papers, Springer. is of great assistance. You can also use Grammarly to correct typos.
Usually remember that the goal of your manuscript is to tell a story. This story should be in a simple and clear writing style. Also, you need to have many looks from colleagues especially, English native speakers. Finally, you need to practice a lot and one of effective methods is volunteering to peer reviewing for journals.
I think practice, experience, and trying to concentrate more and more on writing without any use of software for checks, but to get help from your mentors follow ups.
Should have a good command over the language so that what is going on in the mind could be expressed in words. Also reading other people's works would help. Practice in writing is another. And above all ... thinking clearly - to bring clarity in vision.
Recently I found Swan - Scientific Writing AssistaNt - aims at helping writers with the content, not the grammar or spelling. It guides you towards known good scientific writing practices and helps your readers find your contribution.