https://thismatter.com/money/tax/retirement-plan-types.htm
Types of Retirement Plans: Traditional and Roth IRAs, SIMPLE IRAs, SIMPLE 401(k)s, Simplified Employee Pensions; Safe Harbor 401(k)s, Traditional and Roth 401(k)s, Profit-Sharing Plans; Defined-Benefit Plans
An overview of the different types of retirement plans available to employers, employees, and the self-employed, including IRA-based plans, such as the traditional and Roth IRA, SIMPLE IRA, SIMPLE 401(k), and Simplified Employee Pensions; defined contribution plans, such as the safe harbor 401(k), t...