Amoralie Triellis

Hello All! I've begun my meshing journey watching a number of tutorials JUST on blender to get a good feel for the interface. I'm sure I have a ton more to learn, but I don't see any harm in getting the basic setup ready in blender. So my question is: Which avatar base should I import into blender to mesh clothing off of? I am curious about 'standard sizes' and if this is something I have to consider, and if avatstar / workbench offer support for this. Does rigged mesh make sizing obsolete? Any information you can offer about what I need to add to blender to get the 'canvas' ready to go would be great! Thank you!