This isn't alias related but feels suited for this topic anyway.
For those who have read the full Inazuma story added in patch 2.1 only: My opinion is that we should use the raiden shogun tag for all of Baal/Makoto, Beelzebul/Ei, and the Shogun puppet. This feels like it minimizes the chance of mistagging or tagging wars (if people disagree which Raiden is actually in a picture.) It also minimizes the chance of accidentally spoiling those not caught up with the story, though browsing the Danbooru listing for a character in an ongoing story is just asking for trouble if you're wary of spoilers. Regardless, doing it this way keeps them off the list of genshin impact characters wiki page and such.
If there's enough agreement on this, we can note the fact on the raiden shogun wiki page (in a spoiler tag of course), as well as reminding people to tag pictures of multiple Raidens siblings and not alternate persona or the like. I think the puppet should probably be considered a 'sibling' as a technicality, it's just a big mess otherwise.
This seems to be what most people are doing already, but it seems wise to actually discuss it at some point and make sure there is a consensus.
Edit: It seems a tag has been created, populated, and wiki'd up for makoto_(genshin_impact), so tagging all of them as raiden_shogun is no longer 'what most people are doing already', and I'm wavering on the matter myself. We usually don't let spoilers stop us from attempting to tag characters accurately, I'm just worried pictures will come up where it's literally impossible to tell which Raiden(s) are present, due to alternate outfits or something. But I suppose they'll be a problematic minority of posts and those are not unusual, especially in a copyright that gets tons of art like Genshin.
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