Fantastic Four, Vol. 3: Herald of Doom by Dan Slott

The Fantastic Four faces the Herald of Doom! Galactus has returned to devour Earth, and only one man can save us. No, not Reed Richards – Doctor Doom! But where are the FF in this conflict? Locked in battle against the brave new hero of the Latverian people, Victorious! Thanks to the benevolence and ingenuity of their beloved leader, Victor Von Doom, Latverians will soon know a new age of peace and prosperity, and Latveria will take its rightful place on the world stage – as long as four nefarious foreign invaders are punished for their crimes! Death to the Fantastic Four! But one cruel act will forever change the relationship between the FF and Doom. The fate of Latveria and the world – and the balance of cosmic power in the universe – all rests on one decision!
Collecting FANTASTIC FOUR (2018) #6-13.

It had been a while since I read the FF. And this seems to be a good place to start afresh.
Fantastic Four Vol. 1: Fourever (Marvel Entertainment)

Collects Fantastic Four (2018) #1-4.
The wait is over! The Thing, the Human Torch, the Invisible Woman and Mister Fantastic β€” the first four heroes of the Marvel Age of Comics β€” are about to be reunited! Experience the grand return of the greatest family in the Marvel Universe! As an event occurs that will radically alter the Fantastic Four, Reed and Sue Richards return home with their children. But things have changed! And while Alicia Masters and the Thing ponder a big change of their own, the next chapter begins in the life of Victor Von Doom! Plus: Who are the Marvel Universe’s newest fabulous foursome β€” the Fantastix?! How did they come into possession of the Baxter Building? And what does that mean for the original FF? The World’s Greatest Comic Magazine is back β€” and better than ever!