I found a gem called "Mint Stained Shirt" where the few translated chapters tells us about the child MC, Ming Shu as someone who was dort of deprived of touch by his family and turns clingy-ish (although haven't have much touching part yet) towards neighbor ML and I guess I was intrigued by the trope? It had tiny hint of "Beloved Marriage of High Society" flavor to me also, which I love. So I guess I'm looking recommendations for novels with similar main character who was touch starved which made them clingy-ish towards their partner. BL/BG, preferably HE, a plus if a fluffy story, a double plus if have transmigration/rebirth tropes as well.
Lovely Allergen is a BL with a touch-starved kink ( ͡° ͜ʖ ͡°) Also has a gege kink too if that's what you're into. MC and ML are clingy with each other and their relationship is adorably sweet. Easy to MTL if you catch up with translations and don't want to wait. Plus, the smut scenes are detailed ( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°) Also, I just read the description for Mint-Stained Shirt and based on the vibe and tone I think you would definitely like Lovely Allergen too.
Definitely Residence of Monsters for touch/affection-starved MC (rejected by family). Though it’s technically no-romance, MC is particularly clingy towards one specific guy.