Two i'd suggest, with smart male leads are probably Horimiya, and Zennou no Noa. One other incredibly popular one has an emotionally clever lead is Onani Master Kurosawa. If you liked Brynhildr in the Darkness, which was suggested earlier, you'd also like Elfen Lied, another work by Okamoto Lynn. The main character of that one is a smart, normal, capable guy though he's entirely oblivious.
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