Hi,
You are quite spoilt for great schools near Lechlade. St Lawrence in Lechlade has a great reputation. Southrop – lovely head but tiny – one classroom for Reception – year 2 and one classroom for year 3-6. Meysey Hampton is a lovely school (smaller than St Lawrence and in a sweet village so more rural) – very musical/arty head. Hatherop Primary good school too – sweet with chickens, great productions. Private wise – St Hughs or Hatherop Castle – the latter I would say is more family feel. If you are going to be in Lechlade, I would personally try for St Lawrence – so great to be able to walk to school and have local friends. The smaller schools have composite classes – If going for a smaller more rural school – I would try to find one where Reception are on their own – for example Meysey Hampton – rather than being together with Year 1.
Good luck