A 12% yield is almost never a gift. I say that with love, as someone who's watched smart people learn it the expensive way.
The highest dividend yield stocks look like a dream. Then you collect a few fat payments, the payout gets cut in half, and the stock drops further. Total return: miserable. The market wasn't giving you free money. It was warning you. A collapsed stock price makes the yield math spike, and the dividend cut usually follows within a year or two. Yield-chasing without a safety check is the income investor's original sin. I've seen the sermon play out too many times.

So what's the screen that actually works? High dividend yield, low payout ratio. Not complicated. Run it in a dividend yield screener instead of eyeballing lists. A 5% yield at a 35% payout ratio means the dividend is covered nearly three times over. That company can survive a recession without touching your income. A 5% yield at a 90% payout ratio is one bad quarter from a cut. Same yield. Completely different risk.
Before you commit, run a dividend calculator on the numbers. Multiply the yield by your planned investment. See the actual annual payout in dollars. It keeps the fantasy numbers honest, and it's a thirty-second habit that saves real money.
One more refinement: check the dividend payout ratio by company, not the sector average. Averages hide the sinners. One stretched payer in a basket of safe ones is the one that cuts, right on schedule, at the worst possible moment.
And watch what your screener mixes in. Preferred shares and business development companies often top raw yield lists, and they play by different rules than common stocks. Filter by security type first. Compare like with like. The safe high dividend stocks are almost always plain common shares with boring, covered payouts.
DividendDB lets you filter high yield plus low payout ratio across 197 payers. Start at dividenddb.fyi.