Did you take Global Perspectives both iGCSE years?
Usually this is considered equivalent to world history+geography but you need both years (or another social science before the igcse exam year).
Then due to the A Level system you’d only be expected to have 3 subjects for ALevels. Having 4 is both good (easier to pivot) and bad (because of the C in chemistry).
Right now you’ve got AA A- and B, in US terms, but your application would be strongest if you applied for Business or Economics with your Math, Physics, and Economics predicted scores.
Safeties
You could apply to the Honors College and Business school at ASU and UA.
What appeals to you at Colorado Boulder or UTennessee? I would replace these with UNew Mexico and Cal Poly Pomona and/or Cal Poly Humboldt for Engineering
https://www.cpp.edu/academics/departments-az/index.shtml
Likely:
For Engineering - Clarkson, RIT, UMass Lowell
For Business - Bryant, UCincinnati (co-op), NCSU, Michigan State (+Honors college), SUNY albany (+Honors)
“Undecided” (“DUS”) Penn State
Match:
For Engineering- WPI, SUNY Buffalo, Union, NCSU, Michigan State, Iowa State,
For Business: Bentley, RPI, Pitt, SUNY Binghamton
Reach:
For Engineering-Rutgers, Penn State, UMN TC, VTech, RPI, Pitt
In my opinion, Purdue and GTech are out of reach.