I was playing on my creative world, when I came across a natural skyblock! It has 2 trees on it, and it's in a shattered savannah.
The seed is -1104255672285919870, and its coordinates are -4055, 105, -527.
Once you're there, you should be able to see a desert temple. Explore it, and you'll find an enchanted golden apple! There's also a pillager outpost nearby that you should also be able to see. I hope people have fun playing on this cool seed I found!