Companies are constantly looking for good programmers, point. If you learn you will find a job. But don't learn a little bit, go all the way.
As for the languages...
Python is an excellent general purpose language and a great one to start (I think; I unfortunately had to start with Fortran
). Python is beautiful; it's like English in a lot of aspects. At the same time, it has a great supply of libraries to support practically everybody's needs and supports three different programming paradigms (all useful to know): procedural, object-oriented and functional.
C is the basis for every other language currently being used; it is rather easy to get a grasp of, and it will help a lot to really understand how computers and other languages work internally. I think it's a must to learn for any programmer.
C++ is a super-set of C (or at least it supports C as a subset). It is a fantastic and really powerful language, it is also a fastest language (along with C), and this alone guarantees that it probably will be the only choice for many places in the industry for many years to come yet; hence knowing it well will guarantee you a decent job; but: learning C++ really well will take a long time.
There is also "Objective C" which is an Apple's flavor of C++. It's easy (as a language) if you know C++; learn it if you decide to program for MAC or iPhone.
LISP, Schema and such are "pure functional" languages (you will get a feeling of what it's about while learning Python). People who know a functional language write a nicer Python code:-).
PHP has been very popular for years but its primary scope is web programming only; you don't want to lock yourself up in just one area. Beside that, it's really ugly.
Java is probably the most widespread and popular language nowadays (plus the language of choice for Android); its syntax is based on C++ so learning it for a C++ programmer is a piece of cake;
however it is very verbose and teaches idiotic paradigm shifts and ideas (e.g. "everything is an object" or "there are no pointers" which all are untrue). I personally hate Java and would like to predict that it will fade away soon, but … who knows:-)
C# is a Java/C++ mix in the realm of Windows (…). Easy to learn for a C++ programmer and of course has some market, but (…).
But everything is possible.