Anime: The Seven Deadly Sins
A king's job carries heavy responsibilities, but Barta does everything he can to create a good life for his three daughters (one of whom he isn't biologically related to but took as his own when she was an infant). Sure, his kingdom keeps going to hell in a handbasket due to war and invading demons, but you can't say the man doesn't try.
Anime: Cardcaptor Sakura
A college professor raising his children alone since the death of his wife years ago. An attentive father, Fujitaka cooks, cleans, sews, and is pretty much a "perfect" single parent.
Anime: Somali and the Forest Spirit
For a non-human entity who randomly picks up a tiny "stray" human in the woods, this golem adapts to the parenting thing quite well; and if not for him little Somali would have long since been eaten by monsters or starved to death in a ditch somewhere.
Anime: Ascendance of a Bookworm
A poor but honest man who loves his wife and is a doting dad to his kids. He's especially protective of his clever but sickly daughter Myne and does everything in his power to give her the best future possible.
Anime: Inuyashiki: Last Hero
A great father with a not-so-great family. They don't always appreciate him even though he works his ass off for them, and after he gains super-human abilities he does everything he can to save the world in which they live. Can I have him if they don't want him? We should all be so lucky to have a dad like this.
A devoted dad with one failing (in his eyes, at least): He's a manga artist. He jumps through many hilarious hoops to make sure his little girl doesn't find out about his "shameful" profession, but he puts so much effort into being the best dad he can be that one seriously doubts his small daughter would be emotionally traumatized to learn that her father is famous for authoring such "masterpieces" as Balls of Fury and Tights in the Wind.
Anime: Chi's Sweet Home
Not only is he a loving, kind father to his young son Youhei, but he's also a great pet-parent to his furbaby, the adorable kitten Chi. ^_^
Anime: Sweetness & Lightning
This determined dad is hell-bent on filling the void left by his late wife and making sure his daughter Tsumugi has everything in life she needs - including nutritious homemade meals that he is learning to cook himself.
Anime: Fullmetal Alchemist
Ask this man about his wife or daughter and you'll be there for hours. With pictures, because what doting husband and father can resist shoving images of his beautiful mate and adorable little tyke in your face? And telling you in great detail why the mere sight of them should motivate you to achieve greatness? This is one man who seriously loves his family.
Anime: Poyopoyo Kansatsu Nikki
Hard-working farmer, animal lover, and great father to 22 year-old Moe and 17 year-old Hide. His children have adopted his values and the three of them + their beloved cat Poyo make a warm, happy family.
Anime: The Story of Saiunkoku
A former assassin known as "The Black Wolf" who has since settled down to live a quiet life with his daughter Shuurei. Knowing that Shuurei is brilliant, competent, and determined, he fully supports her goals in life even when they don't mesh with the male-dominated society in which they live. Shuurei eventually becomes the first female government official in their nation's history, and her father couldn't be prouder.
Anime: My Neighbor Totoro
Tatsuo is a loving, hard-working dad who does his best to care for his young daughters while their mother is in the hospital. He moves his family to the peaceful countryside and encourages Satsuki and Mei's active imaginations.
Anime: Vinland Saga
A powerful warrior who forsakes the battlefield in search of a better way of living, and tries to teach his children both by words and deeds. He abhors wanton violence and the practice of slavery, encouraging his family to live honorably through their own merits instead. He managed to free a slave on the brink of death so the man could die free surrounded by the kindness and compassion he deserved, an act his daughter Ylva failed to fully understand. He also tries to deter his young son Thorfinn from pursuing a path of violence, but when tragedy strikes, Thorfinn winds up walking the very road his father hoped for him to avoid. Even so, memories of Thor's love and wisdom follow Thorfinn through his many years of pain and hardship.
Anime: The Royal Tutor
Viktor certainly has enough on his plate being the king of Glanzreich, but he doesn't let that stop him from being a loving father to his five sons and his small daughter. He always tries to understand their viewpoints (even if he has to spend a night serving coffee at a cafe to do it) and respects the fact that each of his very different offspring must find their own path in life.
Descending Stories: Shouwa Genroku Rakugo Shinjuu
Even though the woman he loves winds up pregnant with another man's baby, rakugo artist Yotarou asks her to marry him and let him raise her infant Shinnosuke as his son. He loves the boy unconditionally and even tries to challenge a yakuza boss who he (wrongfully) suspects is Shinnosuke's biological father. Eventually, he and his wife have a second child together, and like their parents, both children learn to enjoy the art of rakugo.