There are a few key points to keep in mind:
And with that, you will have a super easy to make, ridiculously cheap (a lot cheaper than meat), and delicious source of protein, as well as a broth to make other yummy things (like flavorful rice, pasta, or even steamed or quickly cooked veggies)!
People are often scared of dried things because they think they are more time consuming and difficult to make (okay, maybe that was just me before I started making dried beans). Then, after reading a few articles, I realized it was the easiest thing I wasn't yet doing (also realized that about pickling). This is technically true – it does take more time to make dried beans than beans in a can – but you can make so much more, it will be so much better tasting, better for you, versatile, and remarkably cost effective.
I typically go for garbanzo beans (chick peas), black beans, and lentils. Each of those links have more info on each, as well as my personal suggestions and recipes. Though, in general, and as I wrote in the smaller note in the page before this one, the methods applied for one and be used for the others.