CHIRP is handy software for programming your radio, particularly for FM VHF / UHF repeaters.
This page will allow you to input your Maidenhead locator square and get an up-to-date CHIRP CSV file containing UK repeaters
ordered by distance from your location, suitable for importing into CHIRP, to then write to your radio.
The data comes from the beta RSGB / ETCC API so should be considered current and pretty authoritative.
Within
km of locator
personal calls
If you don't know your Maidenhead locator square, find it here or here (off-site links).