While watching Video Reference # 01, I learned several methods to create clean flowing topology in which I am going to explain below. If interested I encourage to watch the video if my explanation is not clear. Go to https://pixologic.com/zclassroom/lesson/zremesher for more information on ZRemesher. Hopefully, The videos and notes that I took are helpful in someway!
To fix uneven topology when using ZRemesher?
In the Tool Palette in the Geometry Palette ZRemesher
Just press the ZRemesher at the default settings
Or
Use the ZRemesher Guide Brush
While using the brush you may draw out many lines where you want topology to flow.
To get clean lines change the curve strength from default 50 to 100.
Or
Polygroup Method
Use Lasso masking brush to the mask out the area, to generate a new polygroup with edge loops around it.
Go to the EdgeLoop Palette and click Edgeloop Masked Border
Then click ZRemsher press KeepGroups
Video Reference # 01