Healthy dry food for older cats?

Me and my bf just moved into a new apartment, he’s had his cat Josie for about 2 years and she’s 9 now. He’s just been buying her ordinary dry food but I’d like to get something more healthy and for her age (she has no health issues as of now except she was obese for a good chunk of her life before my bf got her). She will not eat wet food we tried that so I guess we gotta stick with kibble. Any recommendations?