 If you liked
Kimi no Koto ga Daidaidaidaidaisuki na 100-nin no Kanojo
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 ...then you might like
Shijou Saikyou Orc-san no Tanoshii Isekai Harem-zukuri
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Both involve a confident but nice mc building his harem. Both have very funny comedy with a variety of girls. Both have great art and really cute expressions. Main difference is where 100 Kanojo is a high-school setting, Orc-san is a fantasy isekai setting. Also, in the later the author cleverly blends in a variety of classic other tropes like cooking, medicine, politics etc without it becoming boring.