You might like 'Berserk'. It's dark and violent, with a world that shares some similarities in terms of the criminal and tough aspects like in Yakuza. The art style is also very distinctive.
One manga that could be similar is 'Gangsta'. It features a gritty underworld setting and complex characters similar to those in Yakuza.
You might find 'Kaguya-sama: Love is War' similar. Both have unique character interactions and unexpected plot developments like Yakuza Lover does.
One manga that might be similar is 'Tokyo Revengers'. It also has elements of crime and romance.
I think 'Your Lie in April' might be similar. It has a similar emotional depth and focuses on music-related themes.
One manga that could be similar is 'Berserk'. It has a dark and gothic theme with intense action and complex characters.
I think 'Fruits Basket' might be similar. It has a unique style and explores various themes like relationships and personal growth.
One manga that could be similar is 'Blue Lock'. It shares some strategic elements and intense character development like Catenaccio.
Well, 'Ghost in the Shell' could be a match. Both have elements of cyberpunk, advanced technology, and complex characters. Also, the storylines often explore themes of identity and humanity in a technological world, similar to 'Cyboy'.
You might find 'ZZZ' similar. It features similar visual aesthetics and tackles related themes as Kakakuro. The way the story unfolds and the emotional impact it creates are also comparable.
One manga that could be similar is 'Parasyte.' It has elements of horror and mystery like Infection and focuses on characters dealing with strange and threatening phenomena.
I'd recommend 'Blue Spring Ride'. It has a similar emotional depth and focuses on complex relationships like 'Unromantic'.