Debating coming back to security work

So I have roughly a decade of security experience I quit the last company I worked for and left security valley together. I've been working at a casino for all most e years now. I started of doing janitorial, and now I'm washing dishes. In ny few years at the casino I noticed they don't pay that well. I've been tempted to retake all the licensing and go armed this time around. What is the best way to find a a good security company to work for? I have worked for a few of them here in Dan Diego gaining my experience. The main reason I leftvis because a lot of companies are the same. Poor management, poorly and working with poorly trained guards. I guess my question is? is it worth getting back into after being away for 3 years?