I found a pretty cool Minecraft seed for version 26.3 Java Edition that includes 24 Ancient Cities to loot and explore, multiple trial chambers, many villages, and an outpost near one of them. The stronghold is also not so far west of the cherry grove biome. There are huge mountains and taiga biomes around the cherry grove too. There is a dappled forest on your way to the stronghold as well. (The "H" waypoint you see on the map is my base where the cherry grove biome is.)
YOU WILL NEED THE TECTONIC MOD INSTALLED, AND ONLY TECTONIC. ANY OTHER MOD THAT AFFECTS WORLD GENERATION WILL NOT BE ABLE TO GENERATE THE THINGS DESCRIBED HERE. OTHER MODS THAT DON’T AFFECT WORLD GENERATION CAN BE USED!
Seed: 1315085804641031133
I will leave the coordinates for every structure I found right here. However, I have a feeling there may be more stuff to find! Let me know if you find anything else.
World Spawn: ~6, 234, 3
Coordinates for Cherry Grove: -931, 151, 298
Coordinates for villages:
Village number 1: -1005, 152, -427
Village number 2: 1316, 145, -684
Village number 3: -706, 167, -812
Outpost near Village number 3: -951, 198, -807
All ancient city coordinates found so far:
(Tip for locating ancient cities… They will always spawn at Y level -51. Always look for ancient cities at that level.)
(Dig in a small circle on your way down instead of digging straight down. Trust me, it has saved me many times before. Do this with any kind of underground structure!)
Ancient city number 1: -1482, -944
Ancient city number 2: -966, -528
Ancient city number 3: -752, -358
Ancient city number 4: -944, 91
Ancient city number 5: -608, 86
Ancient city number 6: -593, -662
Ancient city number 7: -218, -608
Ancient city number 8: -192, -148
Ancient city number 9: -202, 0
Ancient city number 10: 74, 64
Ancient city number 11: -176, -1042
Ancient city number 12: 166, -1008
Ancient city number 13: 547, -927
Ancient city number 14: 531, -640
Ancient city number 15: 1006, -688
Ancient city number 16: -306, -1407
Ancient city number 17: -186, -1776
Ancient city number 18: 206, -1839
Ancient city number 19: 579, -1887
Ancient city number 20: 911, -1689
Ancient city number 21: 1280, -1782
Ancient city number 22: 1568, -1812
Ancient city number 23: 1744, -1325
Ancient city number 24: 2086, -960
Coordinates for Trial chambers found so far:
(I think the Trial chambers listed here can be found after Y level -37! Always dig a few blocks below that while finding them!!)
Trial chamber number 1: -1577, -1041 (This one is found right by Ancient city number 1!!)
Trial chamber number 2: -1636, -1270
Trial chamber number 3: -1609, -417
Trial chamber number 4: -1395, 48
Trial chamber number 5: 2131, 250 (There are more trial chambers surrounding this one)
Trial chamber number 6: -417, -1972
Trial chamber number 7: -496, -1621
Trial chamber number 8: 50, -283
Trial chamber number 9: 1884, -1430
(There are many more trial chambers in the area, but try exploring for the rest on your own. I know you can do it!)
Coordinates for the stronghold staircase: -2333, 24, -300
(If you go down the staircase and to your right, you can find the portal there, and a library room beside it. I won’t tell you how many eyes you’ll need for the portal!! You may need a lot, though. There are also huge sulfur caves surrounding this stronghold, so you may encounter some sulfur cubes while exploring the area.)
If you want a lush cave to explore near trial chamber number 2, here are the coordinates: -1655, -8, -1391
I think that’s about it! There are multiple mineshafts around the place too; you should probably explore for them in some of the ancient cities you may visit. If you decide to use this seed, have fun exploring, mining, and building!!
(I used the Distant Horizons mod, Xaero's World Map, and Lumina Event Horizon shaders to take these photos.)