I've got Irish and Canadian. I can get French also but I would lose some money at work. Definitely get it if you can. Never know what the future holds.
Edit:
I'm sure you already know but a Lithuania citizenship will allow you to work and live in all the EU countries.
(Austria, Belgium, Bulgaria, Croatia, Republic of Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden)