You would want to file as Married Filing Jointly even if your spouse has little or no income. You get the highest Standard Deduction and tax brackets that are higher versus filing separately. Plus you can loose some credits or reduced deduction if filing separately.
See this TurboTax support FAQ for filing jointly - https://ttlc.intuit.com/turbotax-support/en-us/help-article/taxation/better-married-couple-file-join...
