In comics, collars and various neck coverings are often used as extensions of the tights.
I like the cowl tight and golden age cowl (female) options, but often times, the base (bottom portion that goes over the collar bones) is usually interfering with the patterns on the tights.
There is a Neck> Tight Band, but that cuts weird in the neck and is kind of low.
Also, there is a Neck> Armor Basic, but that is way to bulky for a decent tights costume.
And we could use Head Type> Pattern> Cover but then one cannot use make up options. Plus, the material for the head and the cover are the same which means that if you have a metal cover, you have a metal face.
Anyway, it would be nice to have some more neck/collar tights options.
And we need mandarin style collar.
Heck, how about some priest collars?
Use your favorite search engine and look up types of collars.