BUR #4225 has been approved by @evazion.
rename collei -> collei_(genshin_impact)
create alias qiqi -> qiqi_(genshin_impact)
create alias ningguang -> ningguang_(genshin_impact)
create alias keqing -> keqing_(genshin_impact)
create alias jean_gunnhildr -> jean_gunnhildr_(genshin_impact)
create alias hilichurl -> hilichurl_(genshin_impact)
create alias baron_bunny -> baron_bunny_(genshin_impact)
the rest of the characters have the _(genshin_impact) qualifier, so for consistency with them (and in a similar vein to other copyrights such as arknights), they should all have it.
since apparently renaming is not allowed for tags with >200 posts, three of them are aliases instead. I'll unalias it after...
Apologies if I missed any, I don't play Genshin so I just looked through top related tags.