Congratulations on your new 5 year old!
So many foods out there! Lots of food threads to peruse here at YT.
We're currently using these two for our two dogs:
Toy Breed Complete Health Senior Deboned Chicken & Oatmeal Recipe Solid Gold Health Products for Pets
I'm very new at owning small dogs so relied heavily on comments here at YT, dogfoodadvisor.com for ratings and to learn how to compare ingredients and some of the analysis provided AT the manufacturer's websites. Formulas seem to change all the time, go to the manufacturers' website for the most up to date ingredients and guaranteed analysis.
Fromm sounded like a very good food as well.
You could always pick a couple and post up a thread with the two choices, lots of comments that way! I find those to be fun! LOL Unless...........