Turkey can get involved in many situations, but will be hard-pressed to make her voice heard loud in the councils of Europe. Yet Turkey sits in a defensively strong 'corner' of the map and with steady leadership ought to be able to rise to greatness. The first considerations for any government must be economic. Without cash and a healthy economy, you cannot build armies or fleets. Without armies and fleets you will not make your way in the world of Austerlitz.
Turkey has a low tax-rate but the advantage of a relatively large population.
Turkey should make a play for Egypt and the trade city Cairo, and is probably the best situated to back-up her claim. Likely rivals will be Naples, Morocco and France. Troops should be loaded onboard ship and transported across to Egypt. The race for Cairo is one against time and the efficiency of your rivals. You should not be afraid to bargain over the city, as other states will often accept a small concession in return for giving you a free hand.