This is what I recommend also. It is so quick and easy to get a source citation. I do like to make a small modification to the Find A Grave citation from WikiTree Sourcer. This is the output from the app:
* ''Memorial'': "Find a Grave", database, ({{FindAGrave|199776035}} : accessed 15 June 2023), Memorial page for James K Aiguiier (1850-21 Dec 1892), citing Moravian Cemetery, New Dorp, Richmond County (Staten Island), New York, USA; Maintained by Bobby Kelley (contributor 46959922).
I like to remove the "Memorial": and then the quotation marks around "Find A Grave" and replace them with the single apostrophes that form an italic instead. So then I get:
* Find a Grave, database, ({{FindAGrave|199776035}} : accessed 15 June 2023), Memorial page for James K Aiguiier (1850-21 Dec 1892), citing Moravian Cemetery, New Dorp, Richmond County (Staten Island), New York, USA; Maintained by Bobby Kelley (contributor 46959922).