As you have asked about the online schools for Occupational Therapy
Assistant, check below for the info

National American University Online

Ashworth College

Penn Foster Career School

Penn Foster – Healthcare

Brown Mackie College - Birmingham

Wallace State Community College

Brown Mackie College-Phoenix

Brown Mackie College-Tucson

Pima Medical Institute-Mesa

Stanbridge College

National American University - Denver Campus

Pueblo Community College

Goodwin Colleg

eManchester Community College

Delaware Technical Community College, George Campus

Trinity Washington University

Adventist University of Health Sciences

Daytona State College

Keiser University, Tampa Campus

Polk State College

Remington College

Chattahoochee Technical College

Georgia Northwestern Technical College - Walker Campus

Middle Georgia State University