If it's crap ... We'll tell you
Nothing from the last decade, that's for sure. Go Old School. Collect the Marvel Essentials trades of the Silver Age Fantastic Four adventures. Back when the writers knew how to sell a comic - great stories. And didn't rely upon gimmicky covers, multi-book crossover uber events every year or writing the characters completely out of character (for shock value).
-- Stan Lee/Jack Kirby, the creators and original team. Highlights include, well, the introduction of all the characters, and the classic FF villains like Dr. Doom and the Sub-Mariner.
-- John Byrne in the 80s. Highlights include the temporary membership of She-Hulk when the Thing left the team for a while, plus Byrne's forays into space and alternate dimensions. Byrne's 20th anniversary issue is one of the best FF stories ever.
-- Walt Simonson in the early 1990s. Highlights include Simonson's brilliant writing of time travel adventures with the FF, also the presence of the tragic character of the She-Thing.
-- Mark Waid/Mike Weiringo in the 2000s. Highlights include great characterization of the team, and the "Unthinkable" story arc.
Most or all of these are collected in TPB form. ALSO, in the mid-2000s there was briefly a second FF series simply titled "4." The initial issues were meant to emphasize drama and the family element, and are not that great, but around about issued 8 or 9 it picks up and has some good stories for the rest of its run. "4" also showcased some truly great artwork.
Every writer has had a slightly different approach to the Fantastic Four. I tend to think that the best stories are the ones that basically treat FF like a science fiction comic with characters who happen to have superpowers, rather than a generic superhero book. Usually Reed Richards' genius is the impetus for them getting involved in crazy stuff. I have yet to check out Future Foundation but it looks pretty cool.