i think you're into boy*boy pairing but i highly recommend you to try something new like heechul x your oc i know it would be something totally different for you but i feel like it would be perfect and exciting to see heechul taking the lead in the realtionship as a man especially from you please concider it :* much love for you

Yesung x Heechul is underrated and i think i'd be cool!!!

I think ChulHyuk could be interesting, but I'm not sure about their chemistry. Probably either Donghae or Kyuhyun, both can be innocent if needed.

I love love love HaeChul but not as a y ship :( Maybe as a soft ship, or a very intimate one without being romantic. TeukChul would be nice since Leeteuk has that innocence, but also the grit to withstand whatever Heechul throws at him once the confusion blows over.

Idk what Heechul's role will be in your corporate story, but if possible please give him a cute secretary/P.A. named Puff who understands him but doesn't put up with him. With or without past history, just wanna see someone seeing his quirks without thinking "why is he like this" haha (HeePuff gives me life they're adorable and they like cats :((( )

Donghae would be really interesting, like you said it isn't a popular ship but I think they work quite good together. Or I would like Hanchul too, I live for Hanchul.
XD (I voted for Donghae since I could only choose one)

I think TeukChul cuz its most active right now.. And I am a Teukchul shipper so.. Anyways I just hope Teukchul.. Would love Teukchul in the form of your writing :D All the best

Hyukjae.

I really like this pairing! (Heechul & Eunhyuk)

Ryeowook is my vote.

HeeWook ~ Or ChulWook, or what the ship is called. I really liked that pairing in your "Food Service" story ~

yechul,hyukchul