Use Sprintax which is Intuit's partner for non-resident aliens.

Sprintax 

Hi DanPaul03, Thanks for the reply.

I am already a US resident alien living in the US. But I do have some Canadian stocks held in a Canadian brokerage.

Q1. For US tax return, can I use US Turbotax for US resident alien with some Canadian stock trades? If not, can I use Sprintax?

Q2. For my Canadian tax return, what software can I use to file Canadian investment income? I tried Canadian version of Turbotax Premium. The software locked up when I entered my US address.

Contact TurboTax Canada.  There is no phone number.  Just use the link,

This is the link for TurboTax Canada help.

Thanks DanPaul03 for the answer to Q2.

Can you help me with Q1? Keep in mind that I am already deemed US Resident Alien in 2020. Thanks.