Is your feature request related to a problem? Please describe.
It's not possible to, to my knowledge (which may be lacking), create a trigger filtering units of a certain type, e.g., totems or beasts etc without custom coding. For example the use case could be wanting to avoid adding an icon on a nameplate if that nameplate unit is of creature type totem, or beast etc. I am running into this often with totems, where I oftentimes find myself not wanting auras to show up on them.

Describe the solution you'd like
I would like for a new option to be added in Triggers, probably under Player/Unit Info -> Unit Characteristics with "Creature Type".

Describe alternatives you've considered
The option could be added elsewhere but I think this is the logical area to place the option.

Until an option is added one has to write a custom trigger using UnitCreatureType or, in the example with totems above, filter them based on names using the Unit Player/Unit Info -> Name/Realm option. If there are other solutions I'm all ears, but I havn't been able to find them.

Additional context
It would be good to have have the "is" creature type filter but also the inverse, i.e. the "is not" creature type filter would be very helpful. Although one can use a custom activation function to inverse the "is" filter, it is a bit more convoluted.

The api for that https://wowpedia.fandom.com/wiki/API_UnitCreatureType returns localized values, thus we would have to ship a file with localized names for all types. That's a maitenance burden that we don't want to have for such a minor feature.