Is this for an IB EE? If so make sure you check the marking rubric for an EE in that subject (your IB coordinator should have some documentation with the requirements for EEs in all subjects), and pick a title that fits the mark scheme. For example as I recall when I did IB, an economics EE required collection of primary data by the student, which necessarily requires you choose something that will relate to economic effects that may affect local businesses or households. That might not be the case anymore though! But try and pick something that will make it easy to meet the requirements in the marking rubric for an EE in your subject instead of just arbitrarily
Is this for an IB EE? If so make sure you check the marking rubric for an EE in that subject (your IB coordinator should have some documentation with the requirements for EEs in all subjects), and pick a title that fits the mark scheme. For example as I recall when I did IB, an economics EE required collection of primary data by the student, which necessarily requires you choose something that will relate to economic effects that may affect local businesses or households. That might not be the case anymore though! But try and pick something that will make it easy to meet the requirements in the marking rubric for an EE in your subject instead of just arbitrarily