I don’t think many of us need ideas, given our age and the fact that many of us have lost partners in the recent past.
DH is buried in a lovely country churchyard overlooking the village and countryside he loved.
I took an instant dislike to the woven coffins we were shown, finding them too like oversized picnic hampers, so his coffin was simple English oak lined with unbleached linen. No knobs or twiddles
I walk up there with the dog most days, through a field and little copse and have a chat. He has a green Cumbrian slate stone with the simplest of inscriptions, made and engraved by a friend of a friend and there are snowdrops planted in the turf I had laid on the grave.
No wreaths, just a spray made by a former colleague, of the same winter flowers, thistles etc D had in her wedding bouquet two years earlier also in December.
This family and friend involvement made it all much more personal .
We each do what feels right for us- what is right for you may not be right for me and vice versa.
I would never presume to dictate what people should do, it is one of the most personal decisions we can make.