https://www.info.gov.hk/gia/general/202304/19/P2023041900310.htm
"The requirement on the percentage of non-local students to be admitted only applies to the international schools operated by the English Schools Foundation and the new campuses of international schools which entered into a service agreement with the Education Bureau (EDB) upon allocation of school premises or sites since 2007. These schools/campuses were required to enrol no less than 50 per cent of non-local students, and the percentage has been raised to 70 per cent by the EDB since 2009,"
You may try those entered into service agreements with the government before 2007. They may be able to accept more local students.
please note lots of competition and you could found tons of info on 小红书。
top choice (sometimes due to academic reputation or by location): Shantin Junior / Kowloon Junior / Beacon Hill / Quarry Bay School / Kennedy
Remote location may be easier to apply.
ESF elementary school
1. Beacon Hill 540nos. students
2. Bradbury School Stubbs road 720nos Students
3. Clearwater Bay 700nos. students
4. Glenealy mid level 330nos students
5. Kennedy 900nos students
6. Kowloon Junior 900nos students
7. Peak School 350nos students
8. Quarry Bay School 700nos. students
9. Shantin Junior 900nos students
ESF secondary
1. Island school 1200nos students
2. King George V 1700nos studnets
3. Shantin College 1200nos
4. South Island School 1400nos
5. West Island school 1400nos.