In this Minecraft seed for 1.19, I was just trying to find a random one and stumbled upon this amazing seed. I haven't looked in it yet but I have found stuff like structures on a seed map. At spawn, there is an ancient city just 100 blocks away north, and then another one 350 blocks west, both in grove biomes. Then, about 800 blocks away, there's a woodland mansion northwest and 3 more ancient cities 1,000-1,600 blocks south of spawn. Now I don't know the percentage of occurrences for most of the new 1.19 structures, but there is a huge mangrove swamp, 3,000 blocks west of spawn, and it's 800-1,000 blocks long. Also there is a ridiculous amount of villages near spawn, and I counted 38 in a 4,000x2,000 map scale. Finally, this is the seed and also the same map scale as a screenshot.

Seed: 1.19 -1592002172343156423
3.7K x 2.3K Map: