I sincerely hope David doesn't sign for Lazio.
Their racist and fascist fanbase doesn't deserve him
Lazio's fan base has a bit of an unfair reputation.
They have a shitty, far right ultra group (that's been banned), but so do...pretty much all Serie A clubs. And Spain too - for some reason the far left Rayo Vallecano ultras get all the spotlight and not the very far right Real Madrid, Valencia, Espanyol, Celta Vigo, Atletico, Barcelona and Betis ultras.
Fascism and football ultras/hooligans go hand in hand, but Lazio bear the brunt of the reputation. It doesn't help that their Roman identity lends itself to Italian and Nazi imagery, but for the most part they are not much worse than any other Italian club. In fact one of the dumbest Lazio ultra things, of putting up stickers of Anne Frank in the Roma side of the stadio olimpico, is actually matched by Roma fans, who have painted murals in Rome saying "Anne Frank supported Lazio" - but only one made headline news in the mainstream media.
If you play in Italy, you're playing for a fanbase that's partly racist and fascist. It is what it is, unfortunately, although the wave of new American and Asian owners are trying to clean it up considerably.