I mean if you want a specific strain I can toss one out, but if all you want is small and bushy then stick with indica. Any site worth shopping on will list typical height of the plant, but there's not just a single answer to give here.
If you are open to Auto's I'd suggest checking out Mephisto Genetics they just dropped a new strain "Mango Runtz", and one of it's defining characteristics is that it's a small plant, but so are plenty others.