The governments COVID-19 reporting website.
https://coronavirus.data.gov.uk/cases
If you change the cases to UK total, it gives you the 7 day average too.
Stop focusing on the date the cases are announced and look at the figures from when the sample was taking. Gives a much more balanced and accurate figure.
Peak currently showing 7th October just over 18,000 and 7 day average just over 15,000 and levelling off.