Even dandere girls can confess their love sometimes. Nodoka is a super quiet, super shy girl with a crush on her homeroom teacher (one of the most cliche puppy love tropes there is). He may have even accepted her offer if she had managed to stop blushing every five seconds.
Kuudere (クーデレ, pronounced koodeleh) refers to a type of character that is cool, aloof, and introverted but usually very confident - at least on the outside. This contrasts with what is actually a very 'deredere' - or sweet and loving - interior.
As the term tsundere evolved, fans started looking back at older anime and reclassifying certain characters as tsundere. I would never have considered Vegeta of all bloody people a tsundere, but in doing research for this article I came across numerous websites classing our Saiyan friend as one.
To not include Yuno would be like not including a roof in a list of "things your house should probably have". She is the face of the yandere character archetype in a way no other is. Maybe one day someone will take over for our favorite psycho pink-haired girl, but for now, she is the best yandere out there.