My turntable didn't come with a cartridge. How do I know which one to choose?

I was given this player. It appears to be a Lafayette T-6000. From my research its a rebranded audio sonic 2000. I cannot find much information on either of them. It has a Jelco tone arm.

I don't need top of the line one, but I don't mind spending money on something decent.

Here are some pictures. I can try and get better ones. Can anyone help?

https://imgur.com/a/rclIOtv