Best ARC Solid State power to match ARC Ref 5 Pre

"It would be nice if folks here could recommend something other than what they are currently using in their system. "

Why don't we all start recommending things we have never actually heard?

Okay rrog, here is one that will satisfy you.

My friend, with an ARC Ref. 5, uses the 220 wpc LAMM M2.2 (hybrid)
monoblocks. These amps are fantastic, and are among the best couple
of amps I've ever heard. (Fyi, they only have 1 6922 tube in each amp,
so they are almost solid state.) I should point out that he runs them
balanced, (i.e. with XLRs).

The sound is very refined, and incredibly transparent, and the bass
response is tight, fast and deep.

My two cents worth.

ARC 100.2 as recommended above ... if you can live with 100w (I believe) this is the ARC solid state amp to purchase

ARC SS amps stand on the same level as Classe, Mccormack.
McCormack has the best performance for the budget.

I'd recommend the ARC HD220. This is a hybrid and sounds simply wonderful. Plenty of power too.