For the love of desu dont watch anything from Studio DEEN (Umineko, Fate/stay night, etc) if you read the VNs before. And even if you didnt.
Ufotable saved Fate/SN at least.
Kakegurui is my contender for anime of the year. If you like anime where high stakes are involved (as in gambling in this case) thats the anime for you.
Gurren Lagann easily one of the best animes ive seen, and i dont really like mecha in animes that much so that says a lot about it.
Usagi Drop <- prepare to cry.
I dunno, basically anything where the plot (or lack of) isnt reduced to ecchi pantyshots and fanservice and worst of all, NO moeblob anime like K-On for instance. And slice of life is ok as long as its not throughout the entire 13/26 episodes.