18. Massage Therapist
Percent of jobs requiring drug testing: 2.7
Massage therapists do not earn much but the job is flexible, and it usually does not require drug testing. Moreover, almost half of all massage therapists in America are self-employed, so the occupation is a good choice for those who like to be their own bosses. The median salary for the profession is $30,441.

Iryna Inshyna/Shutterstock.com