Özil is a long time star for a huge country like Germany, spent big portion of his career in Real Madrid as assist king, then very hyped EPL move to Arse, based off London, basically easy guy to market. Coupled that with very vocal type in social media, candidly talks about games/his career often (must be depressing for arsenal fans to read, as my brother tells, since he is quite honest). Its much more understandable he has a following then the former golden turd boy that is now Götze, he didnt last long in prime time.
David Luiz, as unexpected as the big following is, is besides being a top player in major NT and clubs, possibly the most hilariously weird guy in football btw

Full time happy mascot. Legit get anyone following him on social media if you noticed his likeable WWE type personality, goes beyond the eyecatching sideshow bob goofiness lol.