To add the all the resources here, Alan Belkin is a composer with many very in depth and practical videos for fellow composers: https://www.youtube.com/channel/UCUQ0TcIbY_VEk_KC406pRpg one of the best theory youtube channels.
And https://musescore.com/groups/counterpoint-and-fugue is one of those well hidden small internet communities centered around contrapuntal writing with many knowledgeable members, original music and in depth essays about contrapuntal details.
And https://musescore.com/groups/counterpoint-and-fugue is one of those well hidden small internet communities centered around contrapuntal writing with many knowledgeable members, original music and in depth essays about contrapuntal details.