We have quite a few eggs you can choose from when creating your server, ill be going over the differences and what's best for you.

Paper: If you want good performance on a great server software I would choose paper, they have great loading speeds and amazing plugin support.
Vanilla: Use this server software if your not going to be using any plugins and just want vanilla Minecraft without the hassle.
Forge: This server software is mainly for heavily modding your server, only use this version if you understand how forge works and your experienced with modding.
SpongeVanilla: Uses a forge mod loader but with the SpongeAPI.
Folia: Is a very new software that is heavily performance based with great load times on servers, and is faster then paper.
Fabric: This software is used for modding with fabric mods on your Minecraft server.

Nukkit: This software is faster for bedrock servers because it is written in Java rather then C++ thus also making it easier to add plugins and create plugins.
Vanilla Bedrock: This is a bedrock server software is for anyone wanting to use the official software from Minecraft.net.