So i'm wondering what kind of protagonists you like.....There are way to many bland ones out there.
I generally like HUMAN ones, as in they make a wrong choice every once and a while, and they mess up, and even when they try to do the right thing, it's kinda the wrong thing.
Like Ryujji from ToraDora
Everyone said "Dont give Taigas dad a chance, he's gonna ditch her all over again, break her heart, etc" But Ryujji, out of the kindness f his heart, told Taiga to give her father another chance. In the end, he ditched her again, showing us that the nice choice can be the wrong choice.