https://www.amazon.com/HDE-Dual-Controller-Adapter-Converter/dp/B01J4JVFXI/ref=mp_s_a_1_22?crid=220ZWEHH9EDY&keywords=ps2+to+usb+adapter&qid=1637035113&sprefix=ps2+to+usb%2Caps%2C151&sr=8-22
The one I use to use looked like this
I got this one, or one similar to this. It works good but do not support whammy: https://www.amazon.com/HDE-Dual-Controller-Adapter-Converter/dp/B01J4JVFXI/ref=mp_s_a_1_8?keywords=ps2+controller+adapter&qid=1575499087&sr=8-8