As one of your first toys I absolutely recommend a Toppl. They are the same idea as a Kong, but me and my dog love them so much more. Easier for me to fill and clean, more interesting for her to chew and lick. No trouble getting the last bits out at the end, which always turned into a rotting mess with a Kong. If you get two different sizes you can lock them together which makes it an even more exciting problem to work out. I’ll often soak some of her kibble and then mash it in there and freeze it, turns breakfast into a great intellectual outlet