Ally makes sinking funds and online savings easy. They offer a 0.5% annual percentage yield (APY) and easy transfers.
Chime is a financial technology company that provides basic banking services. Their popular for their automatic savings. Check-out their savings account with a 0.50% APY.
You can save and invest with Qapital. You set the rules to round-up the change and save towards specific goals. The account only offers 0.1% APY but it has other features you may love.