[sien]

There are a number of interesting companies looking at fusion.

High Temperature Superconductors change what you can do for Tokomaks.

In the US Commonwealth Fusion Systems are exploring these paths:

https://en.wikipedia.org/wiki/Commonwealth_Fusion_Systems

In the UK Tokomak energy are exploring ideas as well:

https://www.tokamakenergy.co.uk/

This video explains why high temperature super conductors can enhance fusion's prospects:

https://www.youtube.com/watch?v=L0KuAx1COEk&t=3642s