Line 13000 - Other income contains taxable income not included in other categories. Common sources of other income include scholarships/bursaries, retiring allowances, lump-sum payments, death benefits, and payments from a Registered Education Savings Plan (RESP).

This  CRA website has more information on Line 13000 - Other income  : https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...