Progress toward net fusion energy is critical for delivering fusion power on the grid. It's not the only progress required — the rest of the machine has to be economical to build and operate. Most of the fusion machines in this paper are scientific projects, but as commercialization progresses, fusion machines with power plant needs in mind should arrive.
(I work for one startup in the field, Commonwealth Fusion Systems. We're building our SPARC tokamak now to demonstrate net energy gain in a commercially relevant design.)
HTS current feeds are a good idea (we also use them at CFS, my employer: https://www.instagram.com/p/DJXInDUuDAK/). It's HTS in the coils (electromagnets) that enables higher magnetic fields and thus a more compact tokamak.
(I work for one startup in the field, Commonwealth Fusion Systems. We're building our SPARC tokamak now to demonstrate net energy gain in a commercially relevant design.)