Have a look in here mate. Lots of suggestions.
https://www.talkphotography.co.uk/tutorials/film-developing-in-the-uk.99/
I generally use Peak Imaging, reliable and quick, not the cheapest but not the most expensive either.
Andy
Check out this thread: https://www.talkphotography.co.uk/tutorials/film-developing-in-the-uk.99/
Peak, UK Film Lab and AG Photographic are three off the top of my head that receive good reviews from members on here.