Duplicates:
#ai & #cosmere artificial intelligence (2 entries & 5)
#wax & #waxillium (5 entries & 32)
#avatar & #avatars (1 entry & 6)
#cognitive shadow, #cognitive shadows & #cognitive entities (1 entry, 48 & 12)
#shard & #shards (10 entries & 248)
Weird ones with hyphens to separate words, but keep the consistency with space instead of the hyphen:
#shard-not-on-a-planet
#alcatraz-earth, #reckoners-earth, #parshendi-blood & #koloss-blooded (but I think these might be fine with the hyphen though)
#autism-spectrum
#lopen should be #the lopen