I am in one of the properties covered by the Grain Connect (subsidiary of Solway Communications) in Scarborough. Annoyingly their residential service isn't really suitable for "power users", as they're using CG-NAT and require you to use their router. After lengthy conversations with their team, they are able to offer a static IP (so no CG-NAT) with the option to use your own router etc, but this is only available on their business plans - all with a 24 month contract (these are the prices I was provided with, so your milage may vary)...
- 100Mb Down, 10Mb up - £25p/m + £5 static IP uplift
- 200Mb Down, 20Mb up - £40p/m + £5 static IP uplift
- 300Mb Down, 30Mb up - £75p/m + £2.50 static IP uplift
- 500Mb down, 50Mb up - £125p/m