Jian Rong from I can do it, Jing huan (I forgot ༎‿༎) from Guide on how to fail at online dating ... both are danmei novels and I'm pretty sure icdi's manhua isn't translated in English yet.... ( ･﹏･) Both are pretty shameless yet confident mcs in my standard ! Jiang Rong is from an esport danmei, he has a foul mouth and isnt afraid to publicly critisze other players in stream (ᗒᗩᗕ)(except when it comes to road) :;;.. he isn't that bad tho .... he has good mechanics of LoL so you get where his confidence and shamelessness is coming from ( ꈍᴗꈍ)
On the other hand, guide on how to fail at online dating is similarly an esport danmei which features Jing huan who is sort of shameless (or else he tries to be !!) He's pretending to be a girl in order to catfish the slag guy who broke his sisters heart (・∀・) in order to do so, he accumulated and planned a whole revenge where he fakes being a girl !!! STILL hear me out... he's shameless in his goals because he might becringe or have a weird way in talking in game but !!! he sucks it up! he's also confident ESP in his looks because he's practically his course's school grass... there are many mentions of him being overly confident on his looks <(￣︶￣)>
Im not sure if this is your cup of tea but I hope you are willing to give these novels a try! (ㆁωㆁ)
Recommend Shameless Confident MCs