The tag alias #56477 dannonitan -> dannoitanart has been approved.

Reason: Same artist. Dunno where the handle with the 'n' in the middle is from, but all their posts lead to the same profiles. Ditto for dannonitanart and dannoitan.

I think the latter would be the best tag to which to alias the other three, despite having only 1 post currently.

EDIT: The tag alias dannonitan -> dannoitanart (forum #326782) has been approved by @bitWolfy.

I found three accounts from sources on this site.
dannoitanart is the Furaffinity and DeviantArt.
dannonitan is the ВКонта́кте (vk), which appears to be a Russian social media platform. She links to the FA here.
There's also a danno itan Twitter, which also links to the FA, and dannoitanart Instagram

I vote for dannoitanart, since somewhere more than half the posts are sourced from the DA and the FA.

The tag alias dannonitan -> dannoitanart (forum #326782) has been approved by @bitWolfy.