In the first place, they are both super cute and heartwarming reads. But, also in both mangas main characters are super handsome, they're coworkers and they also start beeing friends, after one of them sucks at it while the other one is super friendly.
I also found similar the fact that in both cases, one of them used to be at some weird point expressionless, and then soften after their first "friendship".
And, I could say I loved them both.
There are more similar things, but it's better if you go and discover it by yourself!
In this office romance, the senior employee of the company makes friends with a junior employee, who also happens to be a social cripple. The senior ends up falling in love with the junior (his first guy), but the relationship isn't taken forward for fear of 'ruining their friendship'
This rec is for Moshi Koi da Toshite, the spin off series of Sayonara. In both manga, we have an older man that takes care of a bird/birds, who is confessed to by a man several years his junior. Both are short and sweet reads.
This rec is for the chapters 5 and 6 of Ato. Be careful of reading ahead, bc *spoilers*
Both stories feature a socially inept uke who's happy living his life as a loner, till the day our sweetheart seme forces his way into the uke's life, and completely changes his life by 180 degrees. The seme realizes he's in love with the uke, confesses his feelings, finds his feelings aren't returned, and then starts maintaining a distance from our uke. Hurt, it doesn't take long for our uke to miss our seme (with whom he interacted on a daily basis and found his life empty without those interactions), and it gradually dawns upon him that he loves the seme too!
Bonus: The seme's our uke's first love. Awwww <3 read more
Both manga have gorgeous but terribly anti-social/tsundere guys, who are made to become more "normal" by their future partners, both of whom are kind, dorky, and let's face it - a little clueless :p
The art in both manga is good, but Sayonara definitely has superior art.
Similar character dynamics - a likeable and friendly guy ends up befriending a cold, stoic guy, basically pushing his way into the man's solitary lifestyle. And ofc, this ends up being a turning point in the lives of both these men.
Both manga have a kuudere type Mc who's beautiful enough to be a model. He works in a fashion related industry, where his senior happens to be a happy go lucky kinda dork. The senior is attracted to our model, who is quite slow to understand that he too likes his senpai.
The second arc of "Wolf Magic" (Ookami wa Mahou wo) reminds me of "Sayonara, Itoshi no My Friend". There are no similarities with the characters personalities, story settings or uke/semes, but I found that they are similar because of the plot structure.
The noisy/popular guy pushes his friendship onto the quiet/aloof guy and eventually falls in love with him but can't break through his naive shell to get him to understand his feelings. In both, the spacey/quiet characters slowly figure out that they like the noisy guy after they stop spending time with them, due to the noisy guy cutting of their friendship because of his suspected one-sided feelings getting hurt.
"Wolf Magic" has darker emotional drama compared to "Sayonara, Itoshi no My Friend", where the noisy/popular guy, Nagase, has some emotional history around his sexually where in "Sayonara, Itoshi no My Friend", neither persons were gay to begin with.
The art is also clean, fresh and modern in both mangas and very appealing. read more
Both mangas involve men that confess their love to other "straight" men. The males that are confessed to are both extremely beautiful. However, in OnN he's very aware of his own beauty, while in S,InMF he's indifferent.
In OnN, the one that confesses is the uke. In S,InMF it's the seme.