We're in the dark about what 'Draco plug public' actually represents. However, if we assume it's not related to anything improper, it might be associated with a certain type of fanfiction based on the themes or characters it might be linked to. For example, if it has something to do with a fantasy world, it could be related to fanfiction within that fantasy genre. But again, this is all just guessing without more details.
Since we don't really know what 'Draco plug public' is, it's hard to say if it's related to a particular type of fanfiction. It could potentially be related to a genre if it has some connection to a story or series that has a lot of fanfiction, but without more information, it's just speculation.
The term 'Draco plug public' is so ambiguous that it's difficult to determine its relation to any type of fanfiction. It could be a brand or a concept that might or might not have any connection to fanfiction. If it is related, it could be related to a variety of types depending on what it actually stands for. Maybe it could be related to science - fiction fanfiction if it has some sort of technological or futuristic connotation, but that's just a wild assumption at this point.