If you make an edit to your closed post then it gets automatically added to the 'Reopen' queue in the Review section of the site.
Users with enough reputation (3,000) can then vote to reopen it if they feel it is suitable for reopening.
They don't have to find your question specifically, or see it in the main question list - it is just right there in the Review queue itself, already listed out for reviewers to approve / decline.
If you have done this and it doesn't get reopened and you still feel that it should be, then you can flag your own question for moderator attention and request they look at it an reopen if appropriate.
If you leave the question closed and ask a new one then you risk that one being closed as a duplicate of your original one. Which helps nobody and just adds to the overall 'noise' of questions on the site.