Your profile looks very strong overall, especially for Statistics. The combination of a 3.99 GPA, rigorous math/stat coursework, and several research experiences gives you a lot to work with. I also wouldn't worry too much about adding more coding courses; you already have Python, SAS, MATLAB/Simulink, and relevant modeling experience.
The main thing I'd focus on is making your application tell a coherent research story. You have experience across forecasting, biomechanics, algebraic geometry, and NLP, which is impressive, but your SOP should explain how those experiences led you toward statistical learning or your other intended area.
For schools, I wouldn't limit yourself to a particular ranking range. Build a balanced list and look closely at faculty whose current research genuinely matches your interests. Having several potential advisors at each program is more important than the school's overall ranking.
Your profile seems competitive enough that I'd definitely include ambitious programs, but also keep a reasonable range of schools to account for the unpredictability of PhD admissions.