Tenet Cycron is one of my favorite weapon in the game, S-tier without any doubt.
I choose Heat progenitor and use Primed Heated Charge to maximize Heat procs.
That way, we'll be able to slot 2 max rank 60/60 and boost my status chance up to 120% in conjunction with [Galvanized Shot].
We don't have space for an additional fire rate mod, so equip your [Furax] with [Amalgam Furax Body Count] for the 45% fire rate bonus on secondaries.
Cascadia Flare is obviously best in slot here, like it was made especially for the [Cycron].