To be honest you will probably struggle to find something based on your criteria. Realise that all property here is very expensive and most people rent. The only bargains are way out in the sticks so to say, because any decent communuting distance places are already bought up. Decide if being close to Lausanne or affordability is more important. Probably makes sense to rent for a year to get a feel for the place and what is desirable in terms of distance. Places like Vallorabe may be affordable but not desirable for example.