[CentOS] Using ssd disks for kvm guests

Hi all,

Recently I have acquired a supermicro e200-8d micro server to use it as my
homelab.  It is equipped with two ssd disks.

 My idea is to install several kvm guests on it, but I have some doubts
about what type of filesystem (ext4 or xfs?) or block to use (lvm).

 Recommendations? Do I need to accomplish some type of running if I choose
to use ext4 or xfs??

Thanks.