follow the links:
https://pennstatelaw.psu.edu/current-students/online-legal-writing-center/writing-tools/misplaced-modifiers-exercises
https://pennstatelaw.psu.edu/current-students/online-legal-writing-center/writing-tools/parallel-structure-exercises
http://www.phschool.com/atschool/writing_grammar_08/grade12/exercise_bank/pdf/12GE2019.pdf
https://owlcation.com/humanities/Easy-Faulty-Parallelism-Examples-and-Exercises
https://examples.yourdictionary.com/examples-of-parallelism.html