I have no need for such, but I wish you luck.

Your profile says that you take an interest in science; have you approached any scientists (or science students) about editing research papers?

I was lucky, once upon a time, to have friends in various science programs. Every single one of them, while bright about the science they were doing, was simply terrible with grammar, punctuation, spelling, and word choice. I occasionally proofread their papers (for free and for the joy of it - I am not a professional proofreader. You probably see the errors even in this short message.)

I learned so much from those papers! Some of it was real cutting-edge research, too!

If you have any formal education in science (even a college chemistry course,) that is helpful - but not required. You are not doing peer review, after all! But some familiarity with the terms used will make proofreading easier.

Before COVID, I would have suggested going in person to your local college's science department and chatting up a few students. Now, though, perhaps there is something comparable online?