I received a w2 from employment. I also have expenses that were not reimbursed by my employer. Where on turbo tax do I enter those?

W-2 employees cannot deduct job-related expenses on a federal return.  Your state laws might be different.

https://ttlc.intuit.com/questions/4482873-which-federal-tax-deductions-have-been-suspended-by-tax-reform

If you're a W-2 employee, you can't deduct unreimbursed job expenses

• Under the Tax Cuts and Jobs Act (TCJA) that Congress signed into law on December 22, 2017, the deduction for these 2% miscellaneous expenses has been suspended in tax years 2018 through 2025.

However, this doesn’t affect:

• People who work in one of these specific professions or situations
  • Armed Forces reservist
  • Qualified performing artist
  • Fee-basis state or local government official
  • You're disabled and have impairment-related expenses

However, your job-related expenses may still be allowed on your state return. Enter your expenses and we’ll figure out if you can deduct them.