Ficus Elastica are quite fast growers so you could have yourself a big feature plant in a few years only, and if you want it to remain small then nothing more easy to prune it to remain at the desired height.
The Ficus Elastica ticks many boxes: air purifier, highly resistant to pest, high transpiration rate so a perfect humidifier for your other house plants....
Sold in a 20cm grow pot - Height approx. 40cm
Ficus Black Knight - Rubber Plant
Light: lots of indirect sunlight ideally, but will survive properly in a shadier spot
Water: Give it a good soaking when the first 5cm or so of the soil have dried out, don't leave the roots in water though
Fertilising: little but often fertilising works best for the Ficus Elastica