I have been researching some pipeline companies via IBD which seems to fall along the lines of "infrastructure, utility" type investments suggested by this article. I have bought NS which is a pipeline company that also has an asphalt unit and pays around 7.8% and OKS which also gets a fee to store gas, etc. and pays over 7% for my mother. Both are Master Limited Partners that are great for tax purposes. My latest research via IBD is having me consider the following:

SEP pays 5.8% with a IBD rating of 97 (that's good)

KGS pays 7% with a IBD rating of 96

EPD pays 5.7% with a 93