When looking at getting a new 3D printer, I usually start at this site to get a view of what is available:
You can put parameters into narrow your search based on price and features. Once you’ve narrowed down the field to a reasonable range, then I examine the printers within that range. It may be useful to narrow them down a bit by brands that you know have a good reputation in the industry.
Once you’ve found a few you like based on what you see there, start searching the web for reviews, both on the site where you plan to buy it, on youtube, and elsewhere in 3D printing circles. The video reviews are particularly useful, as you get a more direct opinion and view of the 3D printer in question.
Let me know if you have any more specific suggestions to improve this process.
Technomancer's Sanctum 