 If you liked
Rizelmine
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 ...then you might like
Sumomomo Momomo: Chijou Saikyou no Yome
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Both are forced relationships where Rizel and Momo are totally obesessed over their husbands, and the guy does not want them. Also, the constant tossing of fiances, and also, the overdose of females crawling over the protoganists. Not too mention adorable songs for both animes.
In both series, there is the main protagonist and a girl who wishes to marry him although is turned down. Yup, "forced marriages" involving the main girl moving in with the guy.
Of course, there is romance, comedy, and drama in the series. There is also some fan-service and tons of crude humor present as each episode progresses.