Paranormal romance books out there~?

would like to find some paranormal romance book whereby main character with tat someone else are enemies at the start but later become lovers or those alpha males who actually mark their mates and such (like werewolf marking(a bite to own or sth etc or like vampires nipping to own)) or those about soulmates but at 1st the couple dont really like each other types........Oh! and probably books that's main character has a sad past and such~