I personally as a BS holder only along with a (at the time) high school senior published a paper in a top 6 NLP conference. I had no help or assistance from any pH.d or institution.

Maybe not quite as prestigious as nature, but NLP is pretty huge and the conference I got into has average h index of I think 60+

Proof: https://www.aclweb.org/anthology/2020.argmining-1.1/