Tax implications of selling one etf for a dividend etf?

Sorry if this is the wrong sub. Let’s say I had $1 million in VOO but I wanted to sell half of it to buy SCHD. It would suck to pay taxes on $500k. So how would you guys go about having a dividend etf without a huge tax bill.

This is assuming it’s a taxable brokerage account and you’re 5 years from retirement.