There are many PT schemes operated worldwide. You find a large share of them in our database. Really frequently operated schemes, no one-off, single PT rounds. Try and browse our database, it is free to use. Found a suitable PT scheme? Please contact its provider directly for further info.
Here two really really good tips for your database query:
wildcard *: looking for oil, oils, oilseeds? Search for oil*
logic operators: looking for olive oil? Search for olive AND oil