What planets or exoplanets orbit the Sun’s elder twin HIP 102152? Has anyone done any research on the planets that orbit the HIP102152? Since that star is similar to ours and older, I postulate that it’s likely those planets are most worthwhile searching for advanced civilizations.
No planets have been detected in orbit around HIP 102152. 

That does not mean that no planets exist, but that our current techniques are no able to detect them.  Most planet are detected by the transit method. This observes the very small dip in light when a planet goes in front of the star.  However if the planet's orbit doesn't line up exactly with Earth, then the planet will not be detected.

Other methods can detect large planets that orbit close to the star, or very large planets in orbit very var from the star. Solar systems like ours are harder to detect.

Given what we know about the abundance of planets, it is likely that HIP 102152 has a planetary system. But actual detection might no be possible with current technology.

Moreover there is no obvious reason to think that life or intelligent life is particularly likely just because the star is similar to the sun. The nature of the star may rule out intelligent life. But as far as we know, life just needs a reasonally stable energy source and a lot of luck. It doesn't need a solar twin.