Sound with PS5 and PC connected to Spectrum

Hey, I have connected my PC over DP and my PS5 over HDMI to my Spectrum. Unfortunately the Spectrum does not support ARC, so I am wondering, what is the best way to connect a soundbar or any other speaker to both devices or the spectrum directly?
Which speaker or soundbar would you recommend?

Use the 3.5 mm audio out from the monitor to your sound bar if your sound bar supports 3.5mm input.

USB upstream from both devices will need some setting up. But could work if your sound bar support usb audio in or even using a Bluetooth transmitter if your sound bar has built in Bluetooth.

There are ways for you to do this.