Reliable OTC / P2P Bitcoin Brokers in London

Hi all,
I’m looking for a safe and reliable way to cash out some BTC here in the UK (London or nearby). I’ve explored a few options already, but so far I’ve mostly come across unrealistic offers or suggestions that don’t feel secure.
What I’d ideally like:
– Fair and transparent rates (not extortionate spreads).
– A professional service (broker, OTC desk, or trusted P2P) that people here have actually used.
– A smooth process without unnecessary hassle.
I’m not interested in shady meetups or sketchy websites. I’m willing to pay a reasonable broker fee if someone can connect me with a proven solution.
If you’ve had good experiences with OTC desks, P2P platforms, or even reputable brokers in London, I’d really appreciate your recommendations.
Thanks in advance for any advice!