If you liked
Boku wa Imouto ni Koi wo Suru
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...then you might like
Oniichan dakedo Ai sae Areba Kankeinai yo ne!
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Similarities:
Both are romance animes with forbidden love.
And ofcourse both have cute girls.
Dissimilarities:
One is a serious anime while the other isn't.
One starts with a brocon while the other starts with a siscon.