As well as doing it somewhere who teaches the IR you should also try to find a field that has published approaches. That way you get an approach every time you land. (saves time rather than ferrying) and gets you used to operating from an IFR airfield . Places to consider -Southend, Cranfield, Biggin, Bournemouth.
You can also fly on a 600' day, -IFR departure straight into the pattern. 20 minutes airborne per approach. Better than sitting on the ground at Wycombe being told the wx is too bad to do IMC (which happened to me loads). At Biggin you'd be the only thing flying and have the whole approach to yourself.