https://www.adultwork.com/1975128 or https://www.adultwork.com/X+Rhona+X - Rhona seems to be well reviewed here but she is a bit alternative, might be worth a shout, she's on my HL. Sadly doesn't look like she does OWO.
When I read through rest, the well reviewed ones are mainly older ladies or larger ladies, if that is your cup of tea there are a few that can be recommended.
If you want more limited services, there are a few on there as well. I think your best bet is an outcall with a Notts girl, as suggested.
Doesn't do OWO. I had a meet with her in her flat in Derby some time ago, very pleasant, seemed to get on and we had quite a chat after the half hour playtime was up.
On the back of that tried to contact her again, no answer constantly, then on a third occasion, actually arranged a further meet at her flat, only to turn up and her phone was then turned off.
Wouldn't waste my time with her, plenty of equally good options that are both cheaper and reliable.