Putter: Offset or non-offset

Hi all,

Have a question regarding putters that hopefully you pros can answer.. How to decide which putter is more suitable? Offset (plumbers neck) or non/abit offset? Im refering to blades in this context...

I read somewhere that the offset affects the aim bias if I remember correctly.
The more offset the more left aim bias, more offset more rotary arc.

Hope that helps