To reinforce what Linda has written, you can only revalidate the IR in the sim if your current IR is still in date. If it has gone past its expiry date then you will have to do it in the aircraft regardless of how you did it last year.
Most modular training providers charge a similar cost for the use of the sim so you just need to call around the schools most convenient to your location. If you’ve not done any instrument flying in the last 12 months you might want to also consider a sim session with an instructor to blow out the cobwebs and refresh procedures.
The choice of school may well come down to how long you have until your current rating expires and the availability of IR instructor, sim and examiner.