There is only a choice between a comma and a colon when the quotation is being introduced. Only a comma can be used after a quotation. For example: Paul looked over the hedge and shouted: "You can keep half of the strawberries you pick."
https://www.grammar-monster.com/lessons/quotation_(speech)_marks_colon_or_comma.htm
Using Punctuation With Quotation Marks Commas and Quotation Marks. Commas (,) are used to separate items within a sentence or provide a break in a sentence, but they do not function as ending punctuation. Periods and Quotation Marks. Many of the previously discussed rules about commas carry over to when to use a period inside or outside quotation marks. Quotation Marks and Tall Punctuation. ...
https://www.thesaurus.com/e/grammar/does-punctuation-go-inside-or-outside-quotation-marks/
Comma after a Quotation — A Comprehensive Guide Commas & the closing quotation mark: American vs. British English. ... Comma usage after quotation: Examples. ... The incorrect comma usage with the closing quotation mark. ... Frequently Asked Questions on Comma After a Quotation. ... Conclusion. ...
https://www.quickanddirtytips.com/education/grammar/when-to-use-commas-before-quotations
There are two instances where commas are always used inside the quotation marks. First, if a comma is used in a quotation before it is put into quotation marks, it should maintain the comma in the same position and be inside the quotation marks that the rest of the quotation uses.
https://www.infobloom.com/when-do-commas-or-periods-go-inside-quotation-marks-and-when-do-they-go-outside.htm
doc for "comma and quotations".(Page 1 of about 15 results)