CapnZapp
Legend
As in there being nothing closer, probably.I'd argue that EN5ider is the closest analogy to Dragon/Dungeon.
As in actually close, one important distinction remains: official license.
If it was in Dragon/Dungeon, even during the Paizo years, it was official. Even if Wotc later ignored it, they wouldn't have allowed it if it directly contravened the official plans for whatever (dragonborn, the rogue class, shadowfell, the realms...)
If En5ider became official in some capacity; as in having a modicum of Wotc vetting if not a direct line in to "D&D HQ", I believe that would add to its attractiveness. (At least if the goal is becoming "the new Dragon/Dungeon")
