Inspectors say reducing psychoactive drug use is key to HMP Stoke Heath flourishing.
The high security prison is well led and making progress, but is told to improve safety and conditions.
A report by the prison inspectorate highlights problems including overcrowding at HMP Winchester.
A new inspection of HMP Bullingdon finds drug availability is leading to increased violence.
Inspectors say the cause of John Keenan's death was not known when they reported on Haverigg Prison.
Inspectors praise staff for improvements since 2022, but safety concerns remain.
The hostel has received a rating of 'requires improvement' from HM Inspectorate of Probation.
Inspectors say leaders at HMP Leeds have taken concerns 'seriously', but problems remain.
Drugs flown in by drones and violence against prisoners and staff at HMP Manchester are highlighted.