I know Nova Southeastern does not require the GRE. However, it's quite expensive, even for online programs. With online programs, clinicals take place near your home (excepting any residency requirements). Some programs require students to find and secure their own placements, while others take care of that for you. I don't know about Nova. Look at each program's webpage for information regarding clinicals and residency requirements, if any.
A few programs accept the MAT in lieu of the GRE. The MAT does not have any math on it. I know California State Northridge accepts it, but I don't know of any others.
There is no calculus on the GRE. Topics covered are arithmetic, algebra, geometry, and data analysis.