It will tow a small one, less than a tonne. If you don't want to spend too much, a 2 berth of about 12ft body length, late 80s/early 90s will be what you want, ebay is usually cheapest place to buy.
We are selling our little 1991 Elddis Wisp 350/2. Its on the free adverts page but no photos yet. Great basic little caravan to get started with, 690kgs I believe unladen and 780kgs mgw which is the same as MTPLM (max loaded weight).
We used to tow it with an R reg Peugeot 1.6 petrol manual.