Depending on career goals you will need the 1000 PIC turbine. If brown or purple is your goal you also better get the over water time. A regional is good for time building but you will need to leave to get the over water time. If possible look into a cargo type position (Atlas, Polar, Kalletta) Get in upgrade quickly to a heavy, build a crap load of time flying rubber dog ##it and move on to Brown / Purple. If your dream is flying for a Legacy, (why?) a regional is a good route. Build your time get the PIC time and then wait for the call.

Good luck, remember nothing trumps PIC international turbine time.

P.S. 26 is still young. Even if it takes 3 years to get qualified and hired by your dream company you will still be under 30 years old. That will leave you with 30 (35 if this stupid age 65 passes) years of dream job flying.