Here are some countries you asked for and some other ones. I don’t think that Swiss charts are free, so they’re not in the list.
Austria:
https://eaip.austrocontrol.at/
Germany:
https://aip.dfs.de/basicIFR/
Malaysia:
https://aip.caam.gov.my/
Netherlands:
https://en.lvnl.nl/information-for-airmen/publications-for-airmen
South Korea:
http://ais.casa.go.kr/AIP.ASP?GUBUNCODE=3&GubunName=AD
Various African countries:
https://aim.asecna.aero/