Pretty much any SoL comedy - specially if it's adapted from a four-panel manga, or primarily action-based series. For the former, you just get more out of the expressiveness and physical comedy when it's animated and movement is involved. You also get additional content when the source material is only four panel and somehow this content is usually good unlike most "filler" stuff.
With action series, action sequences are just greatly improved by the fluidity of movement and manga format is very... still. In a regular book, there's no still imags so you only have the fluid sequence in your head and with animation you have an actual fluid scene to watch in front of you. With manga you have a bunch of still images and it's your job to piece together how the action plays out and it makes things feel stilted. It takes an incredibly talented artist to avoid that problem.