Lots! When it comes to protection sports, SchH is the only one that *does* require tracking.
Service Dogs of America (SDA)/UKC Dogsport (one and the same until the end of 2009, then SDA looses UKC affiliation and no one is entirely sure what will happen). Currently SDA offers tracking titles through SDA, not UKC, but they are separate from the obedience/protection titles and not required for participation in the mainstream SDA/UKC Dogsport titles.
KNPV (not much of this available in the US)
K9 Pro Sports (not sure if this is still around??)
American Street Ring
The biggest problem with most of these is they are few and far between in terms of training groups. SchH is by far the most prolific, and thus easiest to get involved in.
Doesn't hurt to try teaching her to track, you may both enjoy it.
If not, in SchH you can do obedience only titles through USA and WDA. But not protection only.
DVG allows all 3 phases to be titled in separately. So you can do just tracking, just obedience or protection with any 1 of the other two, not both. Their protection titles do require you to trial in one of the other 2 phases as well, but you could do obedience and protection and skip tracking.
You can also do the SchHA, which is SchH1 obedience and protection, no tracking, through any of the SchH organizations. But no farther, except through DVG where you could get to the 3 level in obedience and protection, skipping tracking, through their protection titles.