These sailplanes or gliders range in size from 2-meters in wingspan to 'open class' sailplanes of wingspans greater than 100". Some open class and scale sailplanes have wing spans greater than 3 meters, but you better have a large car and friends to help get that plane in the air.
Typically, planes with wing spans of about 2 meters are the most popular as they're smaller (they fit in the car) and a bit easier to manuever and anticipate their movements in the air. The 'standard' and open class sailplanes have the greatest potential for high performance, thermal hunting or other types such as those that resemble full-size sailplanes.
There is a short list below of electric-assist or powered sailplanes that have electric motors. Additionally planes on this page encompass very speedy, contest-style planes, very snazzy-looking scale sailplanes, and even ornithopters (flapping bird-style planes). Some of the scale sailplanes look remarkably like full-size sailplanes that carry people aloft. At some point all sailplanes become 'other' in that you can fly these planes on a slope, or even handlaunch them like that class of sailplane. Use your judgement carefully, especially with some of these very expensive aircraft.
There are many different plane sizes in the lists below. If you're a beginner, it's probably best to consider a sailplane that is near the 2-meter size as trying to learn to fly a 10-foot wingspan mega-sailplane can be disasterous if you crash while learning. Also you need to decide what might fit in your car or even your house before considering any of these planes. Some of the larger, open class sized sailplanes are not only difficult to build, but some can be fairly difficult to fly as well, even for an expert pilot. If you are desiring performance, some of the planes in the 'Advanced' category below can offer a challenge that can be truly rewarding.
Here's a list of lots of R/C sailplanes that I consider 'other' sailplanes: (These links change often or disappear, I will try to keep updating this list when I can)