The character personalities of the main couple in both series is very similar. Nuea and Tine being the loud, say what your thinking, almost shameless, and clumsy type. With Kleun and Sarawat being the type that puts up a cocky and couldnt be bothered front while being secret softies/simps for their love interests.

As a result, we see similar things occurring with the relationship dynamic and the plot of both - such as the mild mind games to get the other to trip up and confess, their friend groups noticing the tension and being mischievous shippers, and a desire to show off/show up each other.

Both series comprise of characters pursuing their dreams, as well as tackling the very serious question of by what means do they want to get there, while settling into a comfortable dynamic in their new relationships. The overall straightforwardness, tone, and production quality were very similar - giving off a vibe that they could even be taking place in the same storyworld as each other.

If you like the track/cross-country element of You're My Sky, and the push-pull of the focused senior Aii and the younger romantic San, Mr. Heart does a wonderfully wholesome combination of those 2 storylines.

If you like the ThornFah storyline in You're My Sky, the main couple in Dont Say No would be appealing. They are both friends-to-lovers stories, with an awkward start to their new relationship dynamic. Both couples also bonded through their love of basketball, which is a driving point of their respective plots.

These are both relatively dark series in which you question who the main character can actually trust - both revealing a far grander plot than initially suspected.

Although these 2 series are pretty different in tone and premise, their respective main characters (Preuk and Type) are very similar to each other. And they both have a satisfying end in which they are able to expose the background manipulator of their respective storylines.

In both The Lost Tomb and Fatal Journey, we are focused on a main protagonist who's strongest contribution is their intellect and knowledge, supported by family and friends who help with the fighting aspects of their missions..

In both productions, there is a certain degree of supernatural/undead contribution to the conflict, as well as human complications. Plus, they both possess similar tones/moods, as well as primarily taking place in a tomb, composed of various traps and puzzles that must be solved to proceed safely (thus our MC's strengths are played to their full potential).

They also both belong to larger fantasy and bromance franchises:
Fatal Journey (although it could be watched independently in theory, if one does not mind spoiling the main franchise), is a branch-off story focusing on a side character from The Untamed - a Xianxia bromance adapted from a danmei novel. Meanwhile The Lost Tomb is the first installment series to the titular franchise - a modern fantasy (with cultivation elements) bromance story adapted from a novel series.

Now hear me out, I am well aware of the very BIG differences between these 2 series. Cherry Magic is really clean (everything happened behind closed doors, and is kept to a minimum), has a dash of magic realism, and is a BL romance on top of that. Rinko-San shows multiple intimate scenes on screen, is much more grounded in a realistic plot, and they are definitely straight.

But the driving premise, being a virgin well past the age that the average person is, is performed pretty similarly. And our main characters have such humorously similar imaginations and reactions to their romantic interests being forward with them. Not to mention, they both explore that workplace romance trope with established coworkers (rather than new ones), have friends inside and out of the workplace, with a friend that acts as a bit of a "love-guru" to the main.

So despite the pretty obvious differences, I couldn't help but be reminded of Cherry Magic when watching Rinko-San.

Both BL series center around the residents of an apartment complex falling in love with each other, as well as the eccentric antics of their kathoey (Thailand’s 3rd gender including transgender people, crossdressers, and effeminate gay men) landlords. Both series also have a similar approach to comedy - including cartoonish emphasis inserts from time to time.

Both being Japanese school dramas, they both have a very similar atmospheres. And they both pursue an underlying narrative of understanding others. Some of the character types resemble each other (although in a more serious manner in Shujin-Ko). While there is a BL storyline in both, it’s a side story in shujin-ko, rather than the main relationship (like it is in Kieta Hatsukoi), but the concerns and conclusion of both resemble each other greatly.

Another simple, lighthearted school BL centered around finding and accepting your feelings. They both have similar pacing, and the relationship dynamic is also similar: one entertainingly honest and caring character - paired with a more cold and quiet athlete.

This recommendation is based solely on character types. The personalities of the characters in Love with Benefits feel like younger/cutesier versions of those found in We Best Love.