I'm sorry for your loss.
This past year and a half have been hard on our family, pet-wise. Last spring, we lost our beloved 15yo cat. Like yours, he was just failing--clearly, it was his time, but we hated to see him go. Then last October, another cat--young, but with a heart murmur--suddenly failed. She threw a blood clot to her pelvic region (saddle thrombosis)--the vet said the prognosis and long-term quality of life were both poor, so we put her out of her misery. Then this spring, our 11yo dog got skin cancer. It advanced rapidly, we put her down in April. Our house was quiet and sad.
I was making tentative plans to get my husband a Maine Coon kitten for his birthday (October)--we needed time and space to grieve, plus our daughter had an August wedding planned. Then this summer, my other daughter texted--a co-worker had found 2 tiny kittens at a construction site. His parents couldn't foster--they had senior kitties. Might we foster them? A couple days later, we were foster fails. Maui and Pele have brought much joy (and chaos!) to our home. Never mind about the Maine Coon--Maui is super floofy and silky. And my younger DD swears that Pele, who has unusual markings, has a paw print on one side of her torso, and a "nose boop" on the other.
You, too, will have joy again. When you're ready. The Universal Cat Distribution System and all.