@kythyn there are many integrated amps with USB input now, so I think it would mostly depend on your budget and if you have any particular preference in sound quality.
If you're looking for something $1000 or less, a couple of Internet-direct options with 30 day trial periods are the Outlaw Audio RR2160 is $1000 and the Emotiva TA-100 is $400.
If you're looking for something $1000 or less, a couple of Internet-direct options with 30 day trial periods are the Outlaw Audio RR2160 is $1000 and the Emotiva TA-100 is $400.