More than 2 months with status 'Editor assigned ' ; is it normal?
Contact editor and ask for status update.

Editor assigned generally means someone (whoever first received the submission) has chosen a member of the editorial board to handle the manuscript. It's because they haven't agreed to handle the manuscript that you don't have an assigned editor to email. It shouldn't take two months for the editorial board member to decide whether or not they can handle the manuscript, as well.

I would email the journal office or whoever you can contact and ask them what's going on. They might send a chaser to the invited editor, or they might invite a new editor; either way the ball's in their court.