In this seed you will appear near a large village with a very rare generation. After the start, go to coordinates 370 ~ 30, there you will find a spider spawner under the house of one of the villagers. In the treasury next to the spawner, there are two chests with valuable loot, they contain three name tags and a saddle.
How to use Spider Spawner Under the House seed
Start the Singleplayer mode
Select ‘Create New World’
Then click on ‘More World Options…’
In the ‘Seed for the World generation’ field, enter -6708060042341427998