Fortnite / Youtube / Disney Dig :

https://parentzone.org.uk/article/fortnite-everything-you-need-know-about-online-game - overview

https://www.adweek.com/programmatic/fortnite-publisher-pulls-pre-roll-ads-on-youtube-following-child-exploitation-controversy/ - Youtube ads on known pedophile grooming activities (This is more recent)

https://www.pcgamer.com/strip-fortnite-is-the-latest-in-lazy-exploitation-on-youtube-nsfw/ - The 'latest craze'