The Christ Clone Trilogy is a good one, though I've only made it through the first book. Looks like you can get it for a penny if you buy it used on Amazon. Read the reviews first, though, coz its premise fairly different from Left Behind.
He's a divisive figure, but Pat Robertson wrote one back in the 90s called The End of The Age. I have not read it, but some of my friends have recommended it. So I can't vouch for this one.
There's one called The 7 Bowls that is quite well written, but some parts can be pretty offensive to some I guess. It's free online at the author's website, brandoncolephillips.com/7bowls.pdf. Just keep in mind that it was meant to be realistic, so if you're easily offended it might not be for you.
Hope this helps!