High school is usually post pre calc - AP Calc AB and/or AP Calc BC. Some kids then take AP Stats or Multivariable.
After Calc BC my student took Multivariable in first semester college then Linear Algebra second semester college.
Be careful about rushing through math, especially if you are taking the advanced courses online vs. in a classroom. There is no upside if you aren’t fully grasping the concepts in the process.