High yields and a strong chance for steady payout raises in the years ahead make these great stocks to buy now.Investors looking to pad their passive income streams with high-yield dividend stocks have three excellent choices. If you have an extra $100 to invest, you could set yourself up with dividends from Realty Income (O -0.11%), Altria Group (MO 0.28%), or Pfizer (PFE -0.97%).All three of these dividend payers have long histories of steady annual dividend raises. Plus, they offer yields above 5% at rec ...