Box 3 of 1099-MISC is "other income".
On the back of the form it says:
Box 3. Generally, report this amount on the “Other income” line of Schedule 1 (Form 1040 or 1040-SR), or Form 1040-NR and identify the payment.
The amount shown may be payments received as the beneficiary of a deceased employee, prizes, awards, taxable damages, Indian gaming profits, or other taxable income.
See IRS Publication 525 other income.
If it is trade or business income, report this amount on Schedule C or F (Form 1040 or 1040-SR)