These income investments look attractive following the market's big rally to date in 2024.April was a tough month on the market. The S&P 500 index dropped 4% last month, erasing some of the big gains from the past several months. Here in early May, the market is now up 8%, down from an 11% gain in the first four months of 2024.Long-term investors look forward to volatility like that because it sparks discounts that have nothing to do with the long-term outlook of a given company.With that in mind, let's loo ...