I fed Fromm LBP until Delgado was 1 and then switched him to their Four Star grain free line. Now I swap each bag through all their flavours of the grain free line and even my picky poodle never turns her nose up
She's old enough you can switch her and allow her to have some variety and still keep with Fromm if you wish. They have both grain and grain free flavours and you can switch between flavours without having a period of mixing which is a bonus for me.
Otherwise you can spice up the current Fromm LBP if you want to continue feeding that for a while longer. I use Tripett, raw eggs, coconut oil, olive oil, and warm water on top of the kibble regardless. Other toppers include sardines, yogurt, cottage cheese, carrots, apples slices, green beans - these are all just off the top of my head. They all have health benefits as well as making the kibble extra tempting for those picky eaters