First and foremost, welcome to YT!
As far as what food is "best," that is a hard question to answer. What is 'best' for one dog, may not be the 'best' for the next. You will have to determine which food best fits the individual dietary needs of YOUR dogs.
If you go to the Health and Diet section, there is a list of the more recommended (at least YT member recommended) brands of food at the top in a sticky. Some of the companies will send you samples and coupons if you ask them.
You also may want to try this site for research:
Dog Food Review Ratings
It will link you to sites that examine commercial foods, home cooking, raw feeding and supplements.
Do trial and error runs with your little ones. Find a brand you like, feed if for a bit and observe the results you see. You will know when you have found a good fit for YOUR little ones by the results you see.
Good luck!
