If you can minimise your usage between 4pm and 7pm Octopus Agike is well worth a look. I have the heating set to shut off during those hours when power is expensive and our bill works out to about 15p/kwh
Plus there are times like tonight when the price goes negative so tyrn everything on and your bill goes down.
If you want to compare Octopus tariffs Octopus compare app is brilliant.
Also with Octopus you can get their home mini for free that gives real time usage every ten seconds to the app so you see exactly what’s going on at any time.
We were with go faster for 2 years when it was 15p/5p but since switching to Agile it’s quite “fun” playing the game.