If you're looking for anime similar to Toradora!, you might like these titles. All recommendations are made by Anime-Planet users like you!
A couple of romanaces that sprinkle in comedy (maybe a bit more in Toradora) Both of the female leads are similar in look, One is more of a Tsundere.
The original creator is the same on both of these projects, so you should see some similarities.
If you liked one, you might like the other.
Lotte, the princess of Ygvarland, hates men - a fact that ordinarily wouldn't be a problem given she's just a child. There's just one issue: the girl is a succubus that must suck the life seed from the male species or die! Now approaching adulthood, Lotte must learn to tolerate the opposite sex, but her royal highness won't have any of it. That is, until Judith, the girl's lady-in-waiting, brings Lotte a human boy to the demon world. This unfortunate young man, Naoya, must now open the princess's heart to his gender, but as caring and considerate as he may be, he'll certainly have his work cut out for him!