401k is an investment account that you can use to save your paycheck from your work. Most employers provide this.
A 529 is also another good investment for saving up for college as there are no taxes applied to the investment or income as long as it is used for schooling.
A HSA plan is able to accumulate value for a future health purchase and is also usually taken out of your paycheck. Taxes do not apply so you get the full value of the amount you decide to set aside.
