In the manga, Tanjiro and Kanao don't end up getting married. The story focuses more on their battles and character development rather than romantic pairings.
In the story of the dog and the cat who fell in love. When the cat was cold, the dog would curl up around it to keep it warm. It was a really cute moment showing their love.
One cute moment could be when Saeran blushed as MC complimented his new haircut. Another time might be when MC tripped a little and Saeran caught her in his arms, their eyes locking for a moment in surprise and then laughter.
One great tanjiro and kanao fanfiction could be where they go on a journey together to find a rare herb for an ailing comrade. In this story, their relationship deepens as they face various obstacles in the forest.
One cute moment could be when Naruto finally realizes Hinata's true feelings for him. In some fanfictions, it's shown through a gentle touch, like Hinata reaching out to hold Naruto's hand during a quiet moment, and Naruto blushing but not pulling away. This simple act shows their growing closeness.
A very memorable moment might be when they overcame their first big argument. They had different opinions on something important, but instead of letting it drive them apart, they sat down, talked it out, and in the end, their relationship became even stronger. And of course, their first date, where they were both a bit nervous but also excited. They went to a fair, rode the Ferris wheel, and as they were at the top, looking out at the twinkling lights below, they knew this was the start of something really special.
One cute moment could be when Percy surprises Annabeth with a picnic by their favorite spot near the beach. He brings all her favorite foods and they just enjoy each other's company under the sun.