Best cache for h5p

I intend to run a separate virtual server and wordpress installation to provide h5p to my other sites.

Can you recommend a cache that works well with h5p interactive videos?

I have immediate access to Varnish and Breeze on Cloudways but am considering a different set up that allows for Litespeed, any comments welcome. 

Incidentally, I am aware of and have requested an updated quote from them.