Do you need a large server spawn? This is a truly magnificent one that was built with lots of arches, and lots of room to see things. The arches help give it a grand feel, and the height of the structure is definitely something to take inspiration from. Each pillar has details that when put together with the rest of the build, make it a really beautiful spawn.
You may see weird block errors on some devices. If you see these, type the command:
/fill ~ ~ ~ ~10 ~10 ~10 structure_block 0 replace stone 0