Toradora is basically all Crowning Moments separated by resolutions and buildups.
"RYUUJI'S MINE!"
Also, Kanou's confession
The race at the end of the school festival.
Ryuuji surprising Taiga dressed up as a Santa Claus teddy bear at Christmas Eve
Taiga's delirious confession in episode 21: "Please take these feelings away from me. Make me stronger. I'm no good right now. No matter what I do, I can't stop... loving Ryuuji."
Episode 24 has Ryuuji running away with Taiga to his grandparents' house. The Crowning Moment of Heartwarming comes when he introduces Taiga to them: he grabs her by the head, pushes her to his side and says "Also, this is my wife!". The blush in Taiga's face is priceless.
And last but not least, the True Love's Kiss scene, with Taiga in pajamas and wearing a white sheet like a veil of sorts, tippy-toeing her way to Ryuuji's lips in the Grand Finale.
Easily the final scene in the series when after over a year, Taiga and Ryuuji reunite. When Ryuuji confesses to her, she becomes flustered and headbutts Ryuuji. The look on Taiga's face when he confesses is unforgettable.
Way back in episode 2 when Taiga tries confess to Yuusaku, what she actually does is all but shout her love for Ryuuji without using the words.
Many of Ami's Character Development scenes, particularly between her and Ryuuji or Minori.
