I wanted to make a comment on a question, but I don't have enough rep to make a comment but what I want to say is not an answer to the question. So how can I go about getting my comment to the person who asked the question?
You wait until you have enough reputation to comment.
That's it. It's not a high bar to get to that reputation level (you're nearly there already!).
If the person is active in chat, you can try there. You have enough reputation to chat.