Chinese novels and manhua pretty much have similar tropes though. but Sure!
Usually inter-dimensional travel novels, like Quickly wear the face of the devil, have the incest arc (brother/brother or father/son or even both), so I'm not gonna bother stating those anymore. But If you also want recommendations on those, then just tell me.
1. https://www.novelupdates.com/series/every-day-the-protagonist-wants-to-capture-me/
2. https://www.novelupdates.com/series/ive-led-the-villain-astray-how-do-i-fix-it/
3. https://www.novelupdates.com/series/rebirth-of-chen-an/
4. https://www.novelupdates.com/series/rebirth-of-the-wolfish-silkpants-bottom/
5. https://www.novelupdates.com/series/its-not-easy-being-your-love-rivals-big-brother/
Currently, these are the ones that I can remember. The last two novels are the ones that have the incest trope as their main thing. For other unmentioned novels, either, I can't really remember or they are just too shitty to recommend to people.
(Usually though, these kinds of relationships are more prominent in hetero harem novels/manga, which I honestly hate reading.. heck, even harem BL novels suck. It's usually because they are more focused on collecting boys than developing an actual plot.)
Chinese novels are a lot more liberal towards incest/pseudo-incest depictions of relationships. From what I have read, a lot of romances start from sibling-like relationships. Calling each other in a familial way will almost always signify a sense of closeness between two characters, especially when they are not related. There are a lot of tropes that deal with these kinds of relationships.
In this case, they actually are twins. Once people read more and more Chinese novels, these kinds of tropes would be more unsurprising as time passes. it's not really a big deal.