living in portugal!!! (Lisbon)

ola tudo bem ?

im an australian but with a portuguese background, i want to move to portugal porto or lisboa, i have been living in london for last 3 years time for a change. Im a personal trainer firstly i am wondering is there a market for personal training in portugal even thought i have very limited portuguese. secondly i will like to do portuguese language cours to build up my knowledge etc can anyone suggest any schools, classes or any ideas will be appreciated.