Van Helsing from 'Dracula' is very iconic. He's a knowledgeable and fearless vampire hunter, using his medical and occult knowledge to combat Dracula. Another is Buffy from 'Buffy the Vampire Slayer' series. She's a modern - day slayer, a girl with super strength and skills to take on vampires. And D from 'The Vampire Hunter D' series, with his mysterious dhampir nature and his cool sword - fighting skills against vampires.
I highly recommend "Your Highness Vampire, Please Have Respect". The female protagonist of this fantasy and magical fantasy novel, Fanjo Man, was a vampire duke, but she was sent to a school for demons and vampires. The rulers of the demon world and the vampire world fell in love with her at the same time, but the heroine loved both of them. Later, the female protagonist mysteriously disappeared, and the demon ruler and the vampire ruler joined forces to find her. After finding her, they found that she was the person they were looking for. There were demons, vampires, and princes in this novel. It was exciting and romantic enough! I hope you like my recommendation. Muah ~
The Hunter x Hunter manga is unfortunately not complete. The author has faced various issues that have led to intermittent breaks and an unresolved storyline.