All exchanges which support native FTTP now also offer FTTPoD.
Its not cheap and there's currently only 1 ISP offering the Openreach based On Demand product, fluidone.com. There really should be more but I think many ISPs are still reeling from their poor experience dealing with OR when they began selling FoD-v1 back in 2013, such as Gradwell, AAISP and Zen just to name a few. Even relatively simple installs were taking > 12 months. However things have now changed, I believe OR now use connectorised fibre links for FTTP(oD) greatly reducing labour time, ie less need for fibre splicing and no need for a Customer Splice Point (CSP) anymore.
I placed my FTTPoD order with Fluidone in Feb, all but 30m of the route has been laid and tested. My estimated completion date (ECD) is 16th May, touch wood....