NO. You cannot claim a spouse as a dependent, You file a joint tax return. And so you understand--Head of Household is not a "better" filing status for you. It would not get you a bigger refund.
If you were legally married at the end of 2019 your filing choices are married filing jointly or married filing separately.
Married Filing Jointly is usually better, even if one spouse had little or no income. When you file a joint return, you and your spouse will get the married filing jointly standard deduction of $24,400 (+$1300 for each spouse 65 or older) You are eligible for more credits including education credits, earned income credit, child and dependent care credit, and a larger income limit to receive the child tax credit.
"head of household" is a filing status used if you and your spouse lived apart for at least the last six months of the tax year, and if you were the one paying over half the support for your children. The standard deduction is money you do not pay tax on -- and it is LESS for Head of Household than it is for a joint return. So you would pay MORE tax if you filed HOH.
And you say you live with your spouse. You are not Head of Household. You cannot file that way. File a joint return.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
