Official and canon only is the goal. (The sole exception was the otherwise official D&D Beyond's inclusion of the Blood Hunter class, but it's clearly marked.)Is this a list of resources with a canon source or not? Apologies it is not clear to me. Should you be open to list also non-canon lists, i'd reccomend to look up in the Vault of Pandius for additional material referred to BECMI/RC (and even other editions)