Best for those on a budget & comfortable navigating the night sky
Manual Dobsonians are the classic Dobsonian design: the simple up, down, left, and right pointing system makes Dobsonians very easy to aim at different objects in the night sky. Recommended for beginner visual observers for decades, manual Dobsonians can help budding amateur astronomers learn the night sky. These telescopes are also highly affordable for what you get — an 8" Manual Dobsonian can be found in the sub-$500 price range, which cannot be said for other types of telescopes. If you're looking for pure visual performance on a budget, a Manual Dobsonian Telescope is your best bet.
Best for those who want automatic pointing and tracking on a Dobsonian
Go-To Dobsonian Telescopes are a great choice for those who might be a little daunted by the idea of having to manually point and track the telescope. Most Dobsonians feature an all-manual design, so you have to find objects yourself and keep them centered in the eyepiece by continuously moving the telescope slightly. With a Go-To design, it eliminates all of that extra work. You can enter in any object, and the telescope will automatically point to that object and track it so it stays centered in the eyepiece. This added functionality comes at a higher cost, but has the benefit of automation, which can be especially ideal for beginners.
Best for beginners and those who want a portable Dobsonian
Tabletop Dobsonians can be thought of as miniaturized versions of their full-size Dobsonian counterparts. Unlike a full-size Dobsonian that you need to stand up to use, a Tabletop Dobsonian can be used on a table or other platform so you can sit down and use it. They're also much smaller, portable, and affordable, making them an excellent choice for kids and newcomers on a tight budget. Tabletop Dobsonians will give the best aperture for the price compared to other beginner telescopes, so they're a great choice especially for observing deep sky objects from home.