If You Like the Left Behind Series...

Paul Meier's novels (1) The Third Millennium ; and its sequel (2) The Fourth Millennium (coauthored by Meier and Robert Wise)
In the first novel, the Antichrist is a U.S. President named Damian Gianardo. His nefarious policies lead to the Battle of Armageddon in 2000, and the novel is dated in many other respects, as well, with actual events in the Mideast having outstripped it. The sequel concerns the 1,000-year reign of Christ as it draws to an end. War and disease have been banished, and it's possible to grow as old as Methuselah. Now, it's 999 N.E., Christ has disappeared, and 1,034-year-old Ben Feinberg and his friend Jimmy Harrison (heroes of the first novel) must deal with the rise of a cult that worships Marduk, an ancient Iranian god who is really Satan.

T. Davis Bunn's novels (1) The Warning; and its sequel (2) The Ultimatum
These novels offer a tale about an ordinary man, Buddy Korda, who receives a revelation from God about certain political reforms needed in the U.S. preceding a great national revival.

Nephilim by L.A. Marzilli
This novel mixes UFO sightings at Roswell with the Nephilim, an ancient, mysterious race described in Genesis, on earth again prefiguring the Second Coming.

The Immortal by Angela Elwell Hunt
This novel is an Antichrist tale featuring the legend of the Wandering Jew, who was destined at the Crucifixion to spend a lonely near-eternity seeking out the Antichrist and attempting to convert him to Christ before all is lost.

The Fourth Reich by Robert Van Kampen
This novel is about a Jewish brother and sister, the prophets spoken of in Revelation, who are drawn unawares into the web of the Antichrist. He rises to power as the populist president of a weak Russia hungry for strong leadership. At first he pretends to be pro-Israeli but the reader knows that he was born of a woman impregnated with Hitler's DNA.

The Seal of Gaia by Marlin Maddoux
This novel presents its dystopia in frightening though dispassionate detail. Its 2031 is an overpopulated, almost ungovernable place. Regional nuclear wars have devastated large portions of the planet, allowing humankind to gravitate naturally, with their last vestiges of hope, toward a Gaian philosophy that the earth is one large, dying organism. To save it requires drastic means, including bombs that burn off AIDS-plagued Third World countries without spreading radiation; microchips implanted beneath the skin that allow a near-sentient computer, Omega, to monitor all human behavior; and the Antichrist himself, who levitates above crowds to offer his chilling calls to unity.

Bill Meyers' unnamed trilogy: (1) Blood of Heaven; (2) Threshold; (3) Fire of Heaven
In the first, scientists experiment with an ancient blood sample, possibly from Christ, to transform an evil death-row inmate into a gentle, insightful man. The loose sequel concerns Brandon Martus, a tough, young factory worker who begins having visions that foretell the future. Gradually, the visions turn more precise and signal the rise of the Antichrist. Brandon appears again in the finale as one of the two prophets from the Book of Revelation destined to do battle with the Antichrist. Myers's series is superior to other apocalyptic novels because of his superbly drawn, sorrowful characters; his grasp of the intricacies of DNA, not to mention the frontiers of quantum mechanics and psychokinetic research; and his fine, lively style.

James BeauSeigneur's Christ Clone Trilogy: (1) In His Image; (2) Birth of an Age; (3) Acts of God
BeauSeigneur used to work as an intelligence analyst, and it shows in his presentation, which is rather like that of one of Tom Clancy's techno-thrillers. Details about everything from DNA to the possible impact of meteors are exhaustively presented, and, unlike Jenkins and LaHaye, BeauSeigneur etches his every character with care. Even his "evil" characters are nuanced and intermittently appealing. His Antichrist, Christopher, is presented as an orphan being raised by an obsessive but well-meaning scientist who has cloned Christopher from the blood of Christ. When the scientist is killed, Christopher is taken in by a journalist named Decker Hawthorne, who becomes a publicist for the United Nations as the endtimes begin and Christopher slowly rises to become the leader of the world. Unlike most fictional Antichrists, however, Christopher is a good man, and the arguments he presents as the world slides toward Armageddon seem reasonable.