Elevick's comments are on point: you need to match the sonic signature of the centre channel as closely as possible to the LF and LR speeakers.
Obviously the same speaker brand matching would be the strong main choice preference.
Big caution:
Blindly choosing a c/c solely based on a low budget $$ pricepoint AND at the exclusion of the point highlighted above will likely create a result ranging from thedisappointing to completely irritating.
