Depending on how much your pension pot is, and where in the country you live, have you considered buying a small property - say a flat - to rent out for an income?
If you buy the right property in the right area at the right price (eg at auction) the yield would far outweigh any interest you would get from a normal savings account.
Ok, you will have to accept property price fluctuation, but the trend is always upwards.
We have been investing in property for years, and even when we think prices can't rise any more, they do!
Certainly worth a thought.