Armored Combat League - https://www.aclknights.com
Black Wolf Vikings - http://www.blackwolfvikings.com
Society for Creative Anachronism - http://www.sca.org
HEMA Alliance - https://www.hemaalliance.com
AND The History Channel also has a new knight fighting show …
https://www.gamespot.com/articles/history-channel-has-lost-its-damned-mind-with-new-/1100-6464501/