Canon's system has some ranges for different types of markets and budgets.
The "Rebel" line is the entry level line. Just about once per year, they update the line by offering some new body and sometimes (but not always) remove something from the line. So this year's new announcements in the line are the Rebel T6i and T6s. Last year it was the T5i and T5, the year before it was the T4i, the year before it was the T3i and T3, and so on.
In Canon's "Rebel" model naming convention, the cameras that have no letter suffix after the number are intended as the low end of the their entry-level. These are their most affordable cameras. The models with a suffix are at the high end of the entry-range.
Thus the T5 is Canon's latest most-affordable entry-level body (there is no T6... they usually only update that entry body every couple of years.... not every year.) The camera provides all the basic functions and, in this regard, will do as well for non-action photography.
The differences in the bodies is mostly features that don't contribute directly to image quality. For example... the higher end Rebel bodies have either more or better focus points (The T4i and T5i have 9 AF points but all points are "cross type" (double axis) focus points. On the T5 (no "i" suffix) the 9 AF points have only a center "cross type" point and the remaining 8 points are single-axis points.) The T5i has a capacitive touch-screen LCD. The T5 is just a normal LCD (not touch-sensitive.) The more expensive bodies tend to have a fast continuous burst frame rate -- handy for action photography... but of no use for architecture (unless you're shooting during an earthquake, the buildings are usually not moving.)
However, when it comes to the camera's imaging sensor... it's the same sensor on the T5 as it is on the T5i (the T6i and T6s did get a newer sensor and it's the first time Canon has changed the sensor on a Rebel body in the past 3 years.)
A T5 with "kit" lens (that's the EF-S 18-55mm f/3.5-5.6 IS II) is $399 (retail). It will include everything except the memory card.
Incidentally... if you shop around... I would stay away from "bundles". Other than a few notable vendors such as
B&H Photo or
Adorama, who will package some reasonable bundles (include a cheap basic camera bag, maybe a spare battery, etc.) there are vendors who will create bundles to pump-up the perceived value of the offer with lots of extras. They might include spare "lenses" (which aren't true lenses... they screw onto the front of the real camera lenses and are usually junk-grade quality), "filters" (which are junk quality filters), etc. But everything is pretty much garbage.
A cheap camera bag might be handy to have... a spare battery might be nice (although batteries on DSLRs last a LONG time... not like batteries on a point & shoot. You have to be shooting QUITE heavily with a camera to kill the battery inside a day.)