Under the CARES Act, self-employed individuals may qualify for unemployment benefits even though they usually don't qualify; they may qualify for the Paycheck Protection Program; and they may qualify for the Economic Injury Disaster Loan.
Check these sites for additional information:
Economic Injury Disaster Loan Emergency Advance
Federal Unemployment Assistance Information
Sole proprietors/self-employed individuals should contact their financial institutions to see if they are offering loans under these programs. It is better to apply as soon as possible as funds are limited.