Literally Rey's entire purpose in life is finding her identity and who she belongs with...
At least she's beloved and adored by everyone she meets, though. Even the villains. I know, she was trying to find out what happened to her parents but she is able to overcome most anything thrown her way on her own or she's the one saving everyone else. She's super capable. Unrelateably so.
To form that view you've got to already believe she is nothing but a Mary Sue though.
They are, overwhelmingly, logical progressions. She is a junker that fixes things. As such, it makes total sense she can fix the compressor in the falcon, which is why Han and Chewy like her. Leia likes her because Han likes her and because she has a connection with her through the force.
Finn clearly likes her because she is attractive and she helped save him.
Snoke and Kylo viewed her as an opportunity, very analogous of Vader and the Emperor with Luke. Kylo then repeatedly tries to kill her, at least once on Snoke's orders.
Then there is all the people that didn't like her. Luke, Unkar Plutt, any number of stormtroopers. Hell even Han before she fixed things.
Then there is the isolation of her character when applying this issue (though I note you haven't done this, so I am not pointing fingers at you). Finn is almost immediately and fanatically liked by other main characters. Han had good reasons to openly dislike him, and yet they had charming banter within 10 minutes. Poe, Rose, all hugs and love and kisses.
I've seen people cite a young Luke being annoying as a reason why he wasn't instantly liked. Hilariously, as a highly annoying character, it was all the more extraordinary just how quickly people did like him (Ben, Han, Leia, Lando, every-droid that ever was, etc).