 If you liked
5-toubun no Hanayome
|
 ...then you might like
Amagami-san Chi no Enmusubi
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similarity:
-mc are studious loners
-they are forced to coexist with a bunch of girls each with distinctive personality
-a lot of misunderstanding
-they are initially dismissive of the girls but gradually become emotionally attached with each other
Both anime are romcom harem with a studious male MC. The vibes of both shows are similar, so if you enjoy The Quintessential Quintuplets, you'll likely enjoy Tying the Knot with an Amagami Sister as well. Additionally, the creator of Tying the Knot with an Amagami Sister is a former assistant of the creator of The Quintessential Quintuplets, which explains the similar art style!