Thank you everyone for the suggestions, definitely have been doing my research on the recommendations above.
@kota1 I have considered monoblocks and definitely not opposed to doing so. The Van Alstine have been on my list of possibilities.
@wturkey While they are 4 ohm @ 90, they do dip down to 1.9 in the bass region, which a lot of amps have struggled with.
I also worry about the amount of power required, as SF recommends 80-350W. When I was originally looking for new speakers, a local shop stated the Nova III was night and day difference with more power driving them and assumed that the Serafino would be the same way.