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....
TalkTalk Business 80/20
..(soon to be FluidOne FTTP 330/30)
Netgear R9000 X10 running OpenWRT
My Broadband Quality Monitor