This will depend on your life circumstances today, and what you may be able to envision for the near future.
For example, a young family might consider:
a) the amount needed to pay off a mortgage
b) a continuing income for the surviving spouse
c) future child education costs
d) credit card or other debt liabilities
e) funeral expenses, just to mention a few
Everyone’s situation is different. Talk to an insurance broker; not an insurance agent who works for an insurance company. A broker will get you the best policy at the best price.