Please tell me what are other options besides chemotherapy for breast cancer?

Depends: Chemo is used when breast cancer has metastasized around the body, especially for tumors without hormone receptors (er/pr). It also is sometimes used to kill any microscopic cells that could grow in the future. Tumors that have er/pr may sometimes be treated with hormone therapy instead. Her2 positive tumors may often be treated with antibodies or pills that target her2 instead of or with chemo.

It depends: It depends on the type of breast cancer. If positive for estrogen and/or Progesterone receptors ("er" and "pr") there are other options, though in some cases it may not be as good as taking these meds in conjunction with chemo. If stage 4 breast cancer, there are many clinical trials. Again, it depends on the cancer stage, and the markers er/pr, and her2 from the cancer specimen.