Ylfa (Vinland Saga) - Let's see, she can do about anything and does. She is headstrong, tough, and doesn't fit any anime female stereotype. When guys confess their love to her what does she do? Yell Baka! and smash them? No. Blush a lot, and reply with a I love u to, or I'm sorry but I love so and so? No. She simply rolls her eyes and wonders can't you bother someone else?
Tsujikaze Kohei (Vagabond) - One of his fights, is the best in the manga and IMO the greatest fight in any anime/manga (I've read). That should be enough, but he also is a fascinating character psychologically.
For a few series Im following so far,
Kurosaki in Yamada and the Seven Witches, he may have just joined but hes absolutely hilarious and gives good moments with Yamada.
Tsuki, Yamaguchi, Oikawa, Kuroo, Kenma, Iwaizumi, in Haikyuu as they all feel really well developed, lovable, interesting, and really realistic in their own ways there.
Team Haikyu! | Team Stealth Symphony | Stealth Symphony Support Group