Man it's tough to go through this.
I'll share something I did when we had to say goodbye to our schnauzer years ago to honor him and help my wife with the loss.
His favorite place on the planet was down in Duck Key FL. We'd take him down there every summer and he was in absolute heaven. Between boat rides, eating whole live fish completely like a savage (and I mean the whole damn fish bones and all), killing iguanas, and sneaking out to patrol the streets on the island... he had a permanent human smile on his face the whole time we were there. He was a stud schnauzer... almost 40 pounds of solid muscle... and fearless.
I knew he needed to spend the rest of eternity there when he passed.
So we took his ashes down there and had a little service for him. He had a spot behind the house there in the water where he would post up for hours. The island has crystal clear water channels that flow behind the houses and he'd get down in there on the shallow ledge in water up to his neck and just post up there while we were in the backyard area. That's the spot where we let his ashes go in the water. So his ashes spread throughout the channels on HIS island.
I saved the exact GPS coordinates for that spot from my boat when nobody was looking. When we returned home, I had a bracelet made for my wife that has those coordinates engraved on it along with a couple of small rubies for the coordinate punctuation marks. I gave it to my wife as a present and put a tag on the box saying it was from our boy Harley.
She had a picture painted of him from a pic of him down there in Duck Key that I think I posted here in the "Hug Your Dog" legend thread. He has that permanent human smile all over his face that I mentioned in that pic/painting. The painting hangs in our house now and we see him smiling everyday still.
Check out that legendary thread that was started by our Brudda
@VegasRam when he lost his pup years ago. It's awesome.