The reaction video headset is the same as the Twitch "Inside Game" streaming headset.

Stripes visible here:

https://cdn.vox-cdn.com/thumbor/3bp8gHCi-kNyEaq7dJ87rDAuIYE=/1400x788/filters:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_asset/file/22710161/Bo_Burnham__Inside_00_28_48_22.jpg/cdn.vox-cdn.com/uploads/chorusasset/file/22710161/Bo_Burnham_Inside_00_28_48_22.jpg)

Gaming headset link with stripes that looks closest is posted above but will copy here:

- Gaming Headphones: really doesn't matter, but looks like this one:

https://www.amazon.com/Gaming-Headset-Beexcellent-Headphone-Isolation/dp/B07T17YH1T/

Hope that helps. Thanks for the nice comments!