Large breed dry dog food suggestions

We have a 60lb American Staffordshire Terrier and a 70lb golden retriever/lab mix.

I currently feed them 4Health chicken and rice or lamb and rice. It’s $36 for a 35lb bag at our local TSC and we usually go through 2 a month. However, my husband’s sister has moved in and she has 2 dogs as well. We are now going through 4-5 bags a month but she is not paying for any of it (she is in a financial hard spot and can’t afford it, but we are going to need to have a talk soon).

I do not want to change to just a “cheap” dog food, I want something that is still really good for them but perhaps a little cheaper since I’m now buying double. Does anyone have any suggestions?