There are plenty of free online courses that offer financial literacy. A simple internet search will provide options.

• edx is an example of a platform that has free financial literacy courses. 
• Coursera has a free course on Personal and Family Financial Planning: https://www.coursera.org/learn/family-planning
• Purdue University through edx has another free course on Personal Finance: https://www.edx.org/course/personal-finance

You should be able to find a financial literacy course online that fits your needs, including courses that are paid and give you a certificate of completion.