Loving God and my neighbor as myself.
There have been many false messiahs besides Jesus. Sabbatai Zevi is a famous one. And there was Bar Kokhba, which came closer to being the messiah than anyone else, but who also ultimately failed.Here's an even more interesting question: Besides Christianity has there ever been a major attempt in Judaism for a prophet or some other divine source to be the proclaimed savior of the religion? And if not, why? I find it odd given how long that Judaism has existed, in the timespan of a few thousand years, but the only person they brought forth from it was Jesus. Why is that?
As far as "a savior like jesus," it is not the job of the messiah to save us from our sins. The job of the messiah is to rule during the idylic messianic era. The "savor" type of messiah is unique to Christianity. The Tanakh says in Isaiah 43:11 "I, even I, am the LORD, and apart from me there is no savior."