Please use the following link for a list of the types of employment expenses that you can claim:
https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4002/t4002-5.html
The link you answered with relates to self employment expenses. I am referring expenses incurred when working for a company and are not reimbursed by the company. Possible example: gas, parking, etc - what other types are there?