If you want to avoid copyright issues...why not just get someone to issue you with a creative commons license? There are different types of these CC licenses available. I would suggest that you read more on this topic here https://www.1and1.co.uk/digitalguide/websites/digital-law/how-to-use-creative-commons-correctly/ because these sought of licenses grant people the right to use licensed work, plus they also reserve certain rights. We do have a small number of countries that haven’t signed at all , but these are very few and not really integrated into the bigger part of the world economy in any way.