When it comes to reliable passive income, these three dividend-paying companies are best in breed.One of the most coveted distinctions a dividend-paying company can achieve is to become a Dividend King, for having made 50 consecutive annual increases to its payout. And some Dividend Kings have even longer track records.And while no Dividend King has paid and raised its dividend for 70 consecutive years, some will likely get there by 2032. Three that stand out are Emerson Electric (EMR 0.05%), Procter & Gamb ...