l am new to scRNA-seq and trying to perform drug response profiling using scRNA-seq of breast cancer. I want to obtain scRNA-seq dataset that include untreated and treated breast cancer cell lines or patient samples, including drug response information. But i am not able to do so. I tried it in GEO. Other repositories for such can also be suggested.

If anyone can give suggestion on how to find dataset search witht such details please help.

Thank yOu.