There are currently no confirmed livable planets for humans outside our solar system. However, there are several potentially habitable exoplanets that have been discovered, mainly through NASA's Kepler and TESS missions. These exoplanets orbit stars far away from our own and have characteristics that suggest they may be able to sustain liquid water on their surfaces, a key requirement for life.

Here are some of the potentially habitable exoplanets discovered so far:

1. Kepler-186f: This exoplanet orbits a red dwarf star about 500 light-years away from Earth. It is estimated to be about the size of Earth and is located in the habitable zone of its star, where conditions could be suitable for liquid water to exist on its surface.

2. Kepler-452b: This exoplanet orbits a G-type star about 1,400 light-years away from Earth. It is about 60% larger than Earth and receives a similar amount of sunlight as Earth does from the Sun. Kepler-452b is also located in the habitable zone of its star.

3. Kepler-62f: This exoplanet orbits a K-type star about 1,200 light-years away from Earth. It is estimated to be about 1.4 times the size of Earth and is located in the habitable zone of its star.

4. TRAPPIST-1e: This exoplanet is part of a system of seven Earth-sized planets orbiting an ultracool dwarf star about 40 light-years away from Earth. TRAPPIST-1e is located in the habitable zone of its star and has a surface temperature that could potentially allow for liquid water.

5. Proxima Centauri b: This exoplanet orbits the red dwarf star Proxima Centauri, which is the closest star to our Sun. It is about 1.1 times the mass of Earth and is located in the habitable zone of its star. However, Proxima Centauri is a volatile star that emits frequent flares, which could pose a challenge for life on its orbiting planets.

It's important to note that while these exoplanets have been identified as potentially habitable, they have not been confirmed to support life. Further observations and technological advancements will be necessary to determine if these planets indeed have conditions suitable for life.