Do you already have a turntable?

How to record vinyl:

• https://www.bhphotovideo.com/explora/pro-audio/tips-and-solutions/how-record-vinyl-records-computer
• https://pitchfork.com/features/lists-and-guides/how-to-digitize-vinyl-records/
• https://www.whathifi.com/advice/how-to-digitise-your-vinyl-collection
• https://www.rollingstone.com/product-recommendations/lifestyle/how-to-digitize-your-records-needledrops-vinyl-969573/

A few USB options:

• Basic USB Audio Interface.
• U-Phono has a built in phono preamp.
• Art DJ USB Phono Preamp.

Does he already have a turntable? If he does which model and what is it connected to?

You can connect most any turntable with a built in or external phono preamp to a USB interface or optionally a phono preamp with USB output or better higher cost USB interfaces or $99 USB phono preamp.