The monetary policy page of the main central banks websites :

ECB (European Central Bank) : https://www.ecb.europa.eu/pub/econom.../index.en.html
FED (Federal Reserve) : federalreserve.gov/monetarypolicy/default.htm
BoJ (Bank of Japan) : https://www.boj.or.jp/en/mopo/mpmdec...016/index.htm/
BoC (Bank of Canada) : bankofcanada.ca/publications/mpr/
BoE (Bank of England) : bankofengland.co.uk/publications/Pages/other/monetary.aspx
RBA (Royal Bank of Australia) : rba.gov.au/media-releases/
SNB (Swiss National Bank) : https://www.snb.ch/fr/iabout/monpol/id/monpol_current
RBNZ (Royal Bank of New Zealand) : rbnz.govt.nz/monetary-policy/monetary-policy-statement