Partition help and mounting?
 

I made the following partitions
/dev/sdb1 EFI Partition 130M should this be bigger?
/dev/sdb2 SWAP 512M
/dev/sdb3 Root
/dev/sdba1 Var

With today systems you still need SWAP?

Reason Var will be my server so I want this seperate

Is this sufficient?

Mount /dev/sdb1 /boot/efi correct?
or I mount this to /boot?

I am planning on using efibootmgr not grub

It's useful for hibernation and crash dumps at least, but a swap space size of 512MB is pointless in my opinion.
I don't understand what you mean by Var will be my server.
What do you mean by "this"? The size of the EFI partition seems to be OK according to the Gentoo wiki, though the Archlinux wiki recommends 512MB or more.
The Gentoo wiki page mounts it at /boot, but you can mount it elsewhere. See also the abovementioned Archlinux wiki page.

I don't think you can compare the two tools. efibootmanager is not a boot loader, and Grub is not an EFI manipulation utility.

I am saying that /var directory where my website will be located.

I guess will make a swap space less

Thanks for the info

It does make sense to put your data on a separate partition.