Out of interest is there another more promising controlled fusion option?

pfdietz · on April 1, 2021

Not really. Fusion has inherent generic engineering problems, particularly DT fusion, that are independent of the details of plasma confinement.

ncmncm · on April 1, 2021

I am interested in Field-Reversed Configuration, although it seems more practical for driving spacecraft.

Anything aneutronic that works will be infinitely better than Tokamak. If it doesn't have to work, you are back in Tokamak territory.