I really like 'A New Start for Kuroko and Kise'. In this fanfiction, it starts with them facing some challenges together. It's a story full of heartwarming moments as they support each other through difficulties. It also has some really nice descriptions of their basketball skills within the context of their relationship.
There's 'Kuroko and Kise: Beyond the Court'. This one delves into their lives off the basketball court. It shows how they discover new aspects of each other and how their friendship might be turning into something more. It's an interesting read as it gives a different perspective on their relationship.
One great kuroko x kise fanfiction is 'The Unspoken Bond'. It beautifully portrays their relationship development. The author focuses on their unique personalities, with Kuroko's quiet nature and Kise's more flamboyant one. They interact in a way that shows a deepening connection over time.