How much ram does host unlimited have?

I want to host your minecraft server and look for a site and find host-limited good but i would like to know how much ram they have. And if you have better software, please let me know

Just do localhost
in my opinion localhost is best
(i.e. Host the server yourself)

If you can read:

https://host-unlimited.de/minecraft-server-mieten

How does it work?

As far as I know, you need a computer or laptop for this
just have a look on youtube for minecraft server localhost
In any case, you have to download a server file and have java installed
the server file then in a folder that is made for the server
To run
then the folder is generated as well as a eula.txt file
Open the eula.txt file and set it to true
to save
then create the bat file that starts the server can then assign the ram
It could look like this: "java -Xmx4G -Xms4G -jar (name of the server file) .jar nogui"
The 4 stands for the ram. But you are not allowed to do more than half that is available to the laptop / pc.
Then just start and off you go.
But if it should be public you still have to release ports and join via the public IP