Talk:List of best-selling music artists/Artists

Many sources appearing in WP:RSP / Newspaper of Record / Music-industry related outlets (Billboard, Official Charts Company)

Italy: Andrea Bocelli: 80M (Financial Times, 2021), 90M (Official Charts Company) + The Oklahoman (2022)

Note: certifications for Bocelli found in RIAA, Germany, BPI, SNEP, CAN, BRA, Netherlands, ITA, Mexico, SWI among others

Mexico: Luis Miguel: 100M (Billboard 2017)

Note: certifications for Luis Miguel found in RIAA (Latin/Standard), BRA, Argentina, Mexico and others.

Italy: Laura Pausini: 75M (BBC 2022)

Note: certifications for Pausini found in RIAA, SNEP, BRA, ITA, Argentina, Mexico, SWI among others

France: Dalida: 85M (UPI 1987) + New York Times + Los Angeles Times, 120M (La Presse 2009 NOR), 130M (EgyptToday 2018) ++++ others figures above 130M (e,g 170M)

Note: certifications for Dalida found in SNEP, Canada

Mexico: Juan Gabriel: 100M (Washington Post 2016) + CNN

Note: certifications for Gabriel found in Argentina, Mexico, RIAA (Latin)

Brazil: Roberto Carlos: 100M (The New York Times 2003), 120M (The New York Times 2010) + Billboard 2018, 140M (2019)

Note: certifications for Roberto Carlos found in Mexico, Argentina or Brazil

France: Charles Aznavour: 100M (Reuters 2017) + Deutsche Welle + The New York Times, 180M (BBC 2018) + Associated Press

Note: certifications at least one in Argentina, Netherlands, and many others in France, Canada and UK

United States: Gloria Estefan: 100M (Reuters 2019) + BBC 2014 + 120M (BBC 2019) + The Times (UK)

Note: certifications for Estefan in UK, RIAA, Argentina, among many others

United States: Dolly Parton: 100M (ABCNews 2009) + The Guardian

Note: certifications for Parton in UK, RIAA, Netherlands, Canada among others

Spain: Camilo Sesto: 100M (Associate Press 2019) + USA Today

Note: certifications for Sesto in Argentina (at least one), and various in Spain*

Greece: Nana Mouskouri: 200M (The Guardian 2001) + BBC, 250M (The Age AU, 2005), 300M (Reuters 2008)

Note: with one or more certifications found in Argentina, Netherlands, Spain, Germany, France, Canada and UK

Mexico: José José: 95M (NPR 2019) + 100M (BBC 2019, but "albums")

Note: at least several certifications found in Mexico, and one in RIAA

Canada: Michael Bublé: 75M (The New Zealand Herald 2022)

Note: certifications for Bublé in RIAA, Canada, Mexico among many others

Australia: Kylie Minogue: 80M (Financial Times 2022)

Note: certifications for Minogue in UK, Australia, RIAA among many others

United States: Jennifer Lopez: 80M (Washington Post 2022) + The Times (UK)

Note: certifications for Lopez in RIAA, UK, AUS among many others

Others (or probably into the 75M+ club)

Perhaps all or most of the following artists have sources claiming 75, 100 and above. I didn't check yet.

Others with no certs found, but with high-to-mid reliable sources

Russia: Alla Pugacheva: 150 to 200 million (The New York Times 2000)
China: Wei Wei: 100—200 million
Algeria: Khaled: +80 million
India: A. R. Rahman: 100-200 million

Notes

Some artists have certifications in Spain (I didn't check this country, perhaps this favored many Latin/Italian artists). Same with other databases.

I didn't check European 1986 and 1987 certifications supplied by Music & Media, but surely, there is some artists listed here in that list.

Some databases have archived urls, like Argentina (CAPIF) that I didn't check all of them

Many artists here, (or even others non-included) have reliable sources from WP:NEWSORG in their region/country, but aren't English sources. At least by the moment, I've included only those with English sources.