I used mineatlas.com to search seeds for one with all biomes within 3000 blocks and finally found one. Haven't mapped coordinates yet but did see jungle temple, frozen village, desert village, and desert temple. In the nether, there was a small fortress and a larger separate one. Neither we're near the spawn, so go prepared if in survival. Seed: 47
The Meaning of Life, the Universe, and Everything.
A few months ago, I found a great bedrock seed (971957955) that I gave to a realm I played on. All major biomes are within about 1500 blocks centered on 0,0. The nearest mansion is within 10000 blocks. Now I'd like to find a similar seed that I haven't experienced before. Thanks for sharing! =)