You will find that many companies will be happy to send you a sample of their products for you to try.... there are so many companies out there, each with something different to offer their techs.
Looking through trade magazines (Scratch / NailPro..) is a good way to get a feel for what a company is all about....
For example, some companies are better known for the artistic side of the nail industry (eg. EZFlow, LeChat, Magnetic, Young Nails...) - and this draws in the techs who have a passion for arty nails.
Other companies like to concentrate on the more traditional side of the industry such as CND, Cuccio, Entity..
I am not saying that CND only do P&W and EZFlow only do art - EZFlow do a killer P&W and I love the hand painted designs in the CND adverts.... What I am saying is that each company has it's own style - you will see what I mean! :lol:
It will be usefull for you to trial different brands before committing, as they are all pretty different.... and have a good chat with the staff, get a feel for the people - they can make a big difference to how well you do with your chosen product.
I think it is very important to get the right balance - a product that you enjoy working with, coupled with a company that you enjoy working with.... Have fun!!