The Stroop test in Brain Age DS was always my favorite. Fun to see how you can get in a groove then get tripped up once and quickly become impossible to get them right again.
If literature is too dense for you, I personally like to put on Dropkick Murphy’s Woodie Guthrie albums, Sixteen Tons, Rage Against the Machine, Question, Union Dixie, etc… If anyone has more leftist workout song suggestions, I’m all ears!
Larson predicting the Snowpierecer “They’ve got no bullets!” line decades early.