Shinsekai yori, Kiznaiver Recommendations
Both of them introduce us in a new world, or the race to make it one, with a group of differents children who are discovering themselves but with the same long distance goal: to connect people, to stop war, to prevent violence.
Kiznaiver is more drastic at the beginning, while Shin Sekai Yori is quite at ease in the introduction. Both of them have a unique art and design.
But if you like the dark themed, psychological and ideal-making-world, you will enjoy both.