If your strength and interest is in computing and computer sciences, you may consider pursuing a degree in computing. These are the various institutions offering degree programmes in computing, you may find out more by clicking on the links:
Ideally, you should be aiming a grade of A for both H2 Math and H2 Computing if you intend to pursue a computer science course in a University. Apart from having good grades, many of the institutions are also looking for impressive portfolio (e.g. Python-based projects, Web/mobile App development, coding competitions, involvement in computing/tech related seminars/workshops) as evidence of strong interest and passion and even talent in the subject. In some cases, there would also be interview for the course enrolment.
Having H2 Computing as an A level core subject also open doors to Science degrees (e.g. Physics, Math, Statistics, Data analytics) and Engineering degrees (e.g. Mechanical Engineering, Aerospace engineering), and would prove highly useful since programming is taught at the university for engineering and sciences.