Okay this one is self-explanatory! Like find-a-grave? This is a great site for US graves with a simple search tool.
Here is one with a lot more graves - https://billiongraves.com/search/
Just type in the search information and off you go. I would definitely have a good location typed in our else you are going to be travelling the world, there is a lot of graves here from everywhere.
Returns similar results to find a grave.
Great little site, not sure what PLUS offers, but you know how cheap I am!