As the Reading exam focuses on KS2 maths and English with a mixed reasoning paper (verbal and non-verbal) there is lots you can DIY.
At this early stage focus on extending KS2 literacy and numeracy set at school. Have a look at introductory VR and NVR, some publishers do age related materials.
Talk to the tutors, be wary of those that charge a high rate for group tuition. A good tutor would be offering help and guidance with infrequent sessions if any at this early stage with a view to winning your custom in final year run up to the exam.
Thinking about the exams early gives you more time.
EDIT Have sent a PM private message, look at the top left of the screen and click on "new messages"