 If you liked
Eromanga-sensei
|
 ...then you might like
Imouto sae Ireba Ii.
|
Both have the same premise, obsession with little sisters. Eromanga sensei however is inclined more towards the incest part whereas imouto sae ireba ii is more towards the ecchi part. Both have the same author Tsukasa Fushimi. The setting of the stories are different, but I'm sure if someone likes one, he/she will probably like the other.