Have you looked at any of their websites?
Bobby Jindal just announced, but you can look through his
website news feed and read dozens of op-eds that give you a pretty good idea of what he will be running on. Plus you can look at what
he did as Governor of Louisiana.
Rand Paul has a whole section detailing
where he stands on most every major issue and what he would do as president.
Ditto
Ben Carson,
Mike Huckabee,
Rick Perry, and
Marco Rubio.
Ted Cruz lists his record as well as
numerous entries on his news feed feed detailing his plans. Much the same for
George Pataki. Not much out of Fiorina yet in the way of formally laying out positions, but she is still just getting going,
and looking at her track record, you can get an idea of what sort of solutions she will gravitate toward. Lindsey Graham's Senate website
lists his positions and opinions on most major issues, or a simple google search brings back a lot. I am sure Rick Santorum has stuff on his website too, but I am not willing to venture there...I am already queasy from looking at Lindsey Graham.
You are probably just missing it because you aren't looking.