I have a martin logan cinema ctr... Need match

I have a martin logan cinema center and would like to match some small speakers for the left and right.
( example totem rokk, psb, etc )
this will be for home theater with a sub ) 5.1
( on speaker stands in front of a 110" screen )
please help
Stick with Martin-Logan in order to maintain the same timbre. The matching of the center to the fronts is exceptionally important in order to achieve a seamless transition...

Its alot more important with a Martin Logan to stick with the same then most any other speaker. Most buy a center to match mains, so this is a bit out of the norm to do it in reverse. Other idea is to pick the mains you like then sell the Logan and match the center to new mains.