I’ve heard good things about https://relai.app/

Haven’t used them myself as I am not on the UK.

Depends on amount and frequency.

The Swiss ones are really good.

Here is a curated list, with all the flavors, types and regions

https://darthcoin.substack.com/p/from-where-can-i-get-some-bitcoins

BottlePay

Bitcoin only with lightning address integration 👍