I would like to order minecraft for PC but wanted to ask which one I have to take or whether there are several versions.
You can use Minecraft Java (the PC version) or, alternatively, if you have Windows 10, the Bedrock version
Just have a look at the original Minecraft page. You can get Minecraft there and it's the right one. But then that would be 'Minecraft' and not 'Minecraft Dungeons / Earth / Education'
The Java version is the real Minecraft.
Both versions are "the real" Minecraft
Not really. Java will always be the OG version. When you talk about Minecraft you mean Java.
The only reason for win10 is crossplay that's it