I I do not know what to watch anymore plus I don't want to fall into drama slump like last year again so I started to rewatching Soratobu Kouhousitsu and suddenly feel urge to find any drama with awkward male lead like Sorai. Other example male Lead that fits this criteria is Hiramasa from Nigeru wa Haji and uri lovable Mr Gong from 30 but 17.
Sungkyunkwan Scandal - stiff, awkward, and dorky, plus shy in certain situations
Live Up to Your Name - dorky
Healer - timid and dorky when he's Park Bong Soo, a loner when he's Seo Jung Hoo
Something in the Rain - shy when it comes to romance / expressing his feelings to the FL in the beginning because he's terrified of scaring her away
I’m Not a Robot - dorky (sometimes he's a genius, sometimes he's an idiot; he celebrates his roomba's birthday, etc.)
My ID is Gangnam Beauty - always quiet; prefers to avoid the spotlight (but his good looks often make him the center of attention); sometimes shy or a little awkward
Dream High - starts out as a country bumpkin; very straightforward; sweet and a little bit dorky
Kimi Wa Petto - just as much of a puppy as the ML in 30 but 17, but less shy; the dynamic often should be very awkward, but he's always 100% sincere; willing to be a dork if that's what the FL wants / needs
A Love So Beautiful - a bit shy / awkward / dorky, but he tries to hide it by being aloof
Strongest Deliveryman - dorky and sweet
Goblin - sometimes a deadly general / cursed immortal, sometimes a shy / dorky / awkward kid-at-heart