Here’s a bit of a change in direction from what people are suggesting.
I would consider an Adcom GFA-545 power amp.
Inexpensive to buy. Well designed circuit. Big power supply.
I picked one up so I could have a higher power amp on hand for driving my DIY speakers. All my other amps are below 30w.
For the couple of hundred bucks you’re gonna spend on it, it’ll provide a lot of joy.