Aliasing cobalt → cobalt_(disambiguation)
Link to alias

Reason:

21 cobalt_* tags. + more cobalt* tags.

22 posts tagged with plain cobalt tag including:
an orca whale, a pink mouse, a blue alien, symbol for the element Cobalt,
a white pony, a blue&white fox, a blue&white fennec (same character as the fox?),
a gryphon, and some other images.

Links for cobalt* tags at
https://e621.net/tag?name=cobalt*&type=&order=name

Seven cobalt_(* tags :
1) 1 cobalt_(bahn) character
2) 15 cobalt_(chris_sutor) character
3) 69 cobalt_(cobaltdawg) character
4) 6 cobalt_(foxwerth) character
5) 1 cobalt_(galacticsnep) character
6) 3 cobalt_(mars) character
7) 1 cobalt_(va-artist) character

Plus fourteen more colabalt_* tags
1) 1 cobalt_brooker character
2) 1 cobalt_cougar general
3) 2 cobalt_doll artist
4) 2 cobalt_k artist
5) 1 cobalt_krausse character
6) 4 cobalt_lute artist
7) 7 cobalt_marie character
8) 5 cobalt_nimata character
9) 1 cobalt_nocture general
10) 1 cobalt_skies character
11) 341 cobalt_snow artist
12) 14 cobalt_tangle character
13) 2 cobalt_the_snow_leopard character
14) 67 cobalt_the_unicorn character

Plus
75 cobaltbadger_(character) character
2 cobaltcerberus general
3 cobaltdevil character
1 cobaltfoxie_(artist) artist
1 cobalthusky93 character
1 cobaltk artist (1 post; merge with cobalt_k tag ?)
3 cobaltnocture artist
1 cobaltraccoon artist
248 cobaltsynapse artist
2 cobalttheunicorn general (1 post + 1 deleted; don't see a unicorn. Figure out later)
1 cobalttintederinacei artist
2 cobaltwarrior artist
2 cobaltzephryi artist

EDIT: The tag alias cobalt -> cobalt_(disambiguation) (forum #261375) has been approved by @bitWolfy.