Alternative to Kirkland dry cat food

[DeanImpala67]

Help! My two cats have been fed Kirkland Premium dry cat food (from Costco) for years, but we can't get any for love nor money at the moment. They are older cats (13) and one is allergic to turkey protein. What other dry food can I get to feed them?
And it will need to be one I can get online as we are self-isolating at the mo due to a child with a cough. Any suggestions welcome!

is it this food? someone is selling bags of it on ebay. if not, the meowing heads senior cat food doesn't list turkey protein as one of the ingredients. i would gently mix the old food in with the new one to help them get used to the taste

Thanks @sleepismysuperpower1 I'll take a look at the meowing heads food.

Applaws dried food- zooplus are still selling it