Best strategy under the following circumstances:
a. Brokerage account
1. DRIP
2. Reinvest on VOO/VTI
3. Keep it as Cash balance with 4.x APY
4. Others
b. Roth IRA or HSA
1. DRIP
2. Reinvest on VOO/VTI
3. Keep it as cash balance with 4.x APY
4. Others