Ad Fontes reports SCMP's reliability as 41.56, which is higher than the Washington Post (39.42) and on par with the New York Times (42.00), Al Jazeera (41.55), and USA Today (41.27). Ad Fontes ranks it lower than institutions like the BBC (44.72) or NPR (43.49) as well as newswire services like Reuters (45.62), AFP (47.15), and Associated Press (45.64).

Your other references are Wikipedia and Reddit. Are you sure you don't want to cite what Google Gemini says as well?

Edit: for reference, Ad Fontes puts FOX News at a 35.49, MSNBC at a 34.39, and the New York Post at a 32.98.