Barakamon, 3-gatsu no Lion Recommendations
Both is Slice of life ,you can enjoy watching the main character develop and the little girls in both are so cute in many ways :3
Both main characters were isolated because of their profession. MC in 3-gatsu is a professional shogi player, MC in barakamon is a professional calligrapher. Both MC get help and inspiration from new friends.
Both stories are slice of life and realistic.
-The three sisters and people around the MC drag him out of his darkness.
-Both settings feel very calming and relaxing most of the time
Both anime are prominent in the coming-of-age theme, and are extremely mature with the fair share of heartwarming moments, manly tears and of course the exaggerated comedy.