OK

A typical system I recommend would be

mixer

https://www.amazon.com/Yamaha-MG06X-6-Input-Compact-Effects/dp/B00I2J4V5G

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speaker(s) - you would need to buy speaker stand(s)

https://smile.amazon.com/Alto-Professional-TX310-Musicians-Ceremonies/dp/B097HZT1M9

mics

https://www.amazon.com/innopow-80-Channel-Microphone-Continuous-WM-333/dp/B0749L15PF

TV - I normally like to use 2 monitors, one for the singer and a bigger one for the crowd. I don't have a particular brand or size.

I use these to mount the TV / monitors

https://www.amazon.com/gp/product/B0057PQ8R2

laptop

Needs to have HDMI output. I change the audio setting to run the output in mono.