Indicative rates, not an offer. Averaged from real buy and sell prices.
The pound sterling (GBP) is the national currency. Euros, US dollars and Swiss francs are exchanged most often. London has the most offers, followed by Manchester, Birmingham, Edinburgh, Glasgow and Liverpool.
Bureaux de change operate at airports, stations and in city centres, as well as in post offices and large department stores. P2P offers are handy when you want to swap USDT or USDC for pounds in cash or by transfer.
Below are exchange offices from open sources.