First of all, is this the totality of your tax-advantaged retirement savings, or do you have more?
Second, what level of risk are you comfortable with? 100% stocks is nice when the market is going up, but if you've never been through a crash, you probably don't know your risk tolerance. Many people who said they'd never sell at the low did so back in 2008-09.
Based on these two questions, come up with a desired asset allocation: how much in bonds, how much in stocks, and whether (and how much) to diversify internationally in either or both categories.
Once you have that, we can fill each category (and finally answer your question). For the domestic stock portion in a tax-advantaged account, go with total stock market index. Dividend-paying stocks are fine to some extent for cash flow purposes in taxable (more so back in the day when selling stocks had a cost, but receiving dividends didn't have additional cost, but that's not really the case today), but in an IRA, it's total return (given risk tolerance) that matters the most.