If you want to join online teachers of Essay writing.
Order of preference...
1. Sir Hamood Ranjha
2. Sir Saeed Wazir
3. Sir Taimooor Bukhari
4. Sir Arslan Zahid Khan

If you want to join physical classes... by order of preference.
1. Dr Salma Khatoon Lahore
2. Sir Nasir Jamal Lahore
3. Sir Agha Mohsin Lahore
4. Sir Arslan Zahid Khan
5. Sir Taimoor Bukhari Lahore
6. Sir Noor Ahmed Sammon Karachi
7. Sir Mureed Jasra Islamabad
8. Sir Saeed Wazir Islamabad
9. Sir Ayaz Hussain Mashori Hyderabad

PS. These teachers have rich experience in Essay writing, and some of them are also CSPs or university professors. It depends upon you whom you want to join. This post is for guidance not for marketing purposes.