Ultra-basic: My dad left me some integrated amps (a Marantz and a Phase Linear). I'm buying a home and I want to use them -- what do I need?

The amps are a Marantz 1200 and a Phase Linear 700, which research tells me provide 100 and 350 watts per channel, respectively.

What other equipment do I need to build an audio system using one of these components? I also have a Marantz tuner that would be nice to include.

I've been having trouble doing research because a lot of the forum posts about these topics have a lot of technical terms that I can't easily decode. So I'm hoping someone could just provide a quick overview of how to build a system with vintage components like these.

Thanks!