Son needs a 2 channel amp cheap

My son wants to buy a 2 channel amp to hook my old turntable up to. Looking for a recommendation for a used amp on the cheap. I gave my old Onkyo A7 amp to my other son.

From the 80s: NAD 3020, Rotel, Luxman, Yamaha all with phono.
I really like the older Yamaha CR #20 series receivers ... I think they all included phono

good luck!!

For the money on the used market I like Harman Kardon integrated amps. late 80s and early 90s when the were still made in Japan.