Or of course SubD by Thomthom for the organic form 😉

About the "planar" pieces maybe take a look at the Slicer 6 by TIG 😉
and the Lattice maker familly always by TIG! 😉

@unknownuser said:

Converts edges and faces in a selected flat group into frames

PS About global structure maybe also take a look at the free TopMod ! ☀
(compatible to SketchUp by OBJ format)