I have no idea. Thigh is almost universally preferable/easy to work with but it's sold as the cheapest cut.

I feel blessed to have a grocery chain nearby with the most dirt cheap produce (and often sub-dollar/lb chicken leg quarters if I'm actually eating meat). That's been the biggest game changer for me, having basically catalogued all the cheap sellers of produce in my city and keeping track of what's on sale/in season.

I'm also a firm believer in having some sort of simple frozen meals on hand (healthy or not), because anything is better than the temptation to get food out, especially since a lot of that food isn't going to be healthy anyways.