First of all, wait for a sale. I have noticed that most brands of tomato sauce go on sale at least twice a year. Whole Foods prices are high, but their sales are pretty good! If you don’t need organic and aren’t necessarily watching sodium levels, I would go for Rao’s Marinara Sauce ($7.99 for 32oz on sale). Rao’s sodium isn’t topping the list of sodium heavy brands or anything, but my next recommendation has much less sodium per same-size serving.
If you want organic (and lower sodium), I buy Middle Earth Organics Organic Tomato and Basil Sauce ($6.49 for 19.8oz, non-sale price). I personally don’t eat tomato sauce, because I can’t eat nightshades, but I buy it for my family and they are happy with either of these. My recommendations are based on ingredients that are straightforward, with no sugar, no canola oil, and a “reasonable” amount of sodium (“reasonable” is a relative term, given the nature of pasta sauces in general!). Below are photos of ingredients and nutritional stats.
Middle Earth Organics