X-Men, and maybe some New Mutants and a bit of Marauders.
Only Hickman’s work on x-books matters at this point. The ancillary titles are... ancillary, at best.
Marauders only matters because it seems like a direct answer to, or a conversation or dialogue with Hickman’s X-Men.
However, I don’t think the HiXmen have lived up to their hype.