If you have a personal Google account you can switch between your work and personal accounts using the following steps.

In the upper right corner click circle icon for your profile.  This could be a photo if you have one set or the initial of your first name.  

      

Doing so expands a profile window showing your current profile at the top and "Other Profiles" at the bottom.

If you have no "other profiles configured then you can click the "+Add" icon.  

If you have profiles already created then you can select the profile you wish to use.