Each has its own strengths. Suggest you can research online and this forum - there are many past posts and articles about maternity insurance already. I signed with AIA Qiren. It’s a bundled maternity + whole life insurance to cover the baby critical illness.
Below article may help you to get an idea about insurance : https://sg.theasianparent.com/best-maternity-insurance-singapore . I
PriyankaRaj