Sore wa Totsuzen, Unmei no Aite ga, Koi to Uso Recommendations
First off, it's manga about a matchmaking system for the youth by the Japanese government - Koi to Uso explores the conflicts that can arise with such a system while Sore wa Totsuzen, Unmei no Aite ga is a lighter, more positive take on the subject.
This is not a common plot in manga, so when I started reading Koi to Uso I immediately remembered Sore wa Totsuzen, Unmei no Aite ga - which I had read a long time ago. It's like two different sides of the same coin. Readers who like the topic would likely be interested in seeing the different takes these two
Much like Koi to Uso, Sore wa Totsuzen, Unmei no Aite ga takes place in a world where the government decides marriage partners for people at a young age. Both stories also follow the daily lives of these teenagers.
The government determines the fates of certain couples as a story plot device in both series. In essence, characters who reaches a certain age level are assigned a marriage partner and see if they are compatible. There's an experimental feeling with both series as we see through the life experiences of the couples. In general, an arranged marriage opens up characterization aspects as we see the ways the couple realize more about love.
Koi to Uso and Sore wa Totsuzen are manga with settings of which government choose people's marriage partners based on a matching system. Both stories depict the trials and tribulations of one or few couples.
However, while Sore wa Totsuzen is a story where couples found love through government matching, Koi to Uso is more of a story where the protagonists try to defy the government's decision.