Player: Jan
Character: Ryan Brown/Reiner Braun
Reason for Echo: Bertl's steaming during their not!date
What is returned: The feeling that he's known Bertholdt for most of his life.

Player: Jan
Character: Ryan Brown/Reiner Braun
Reason for Echo: Ellie mentioning she was the "female type-titan" who crushed him in his memory.
What is returned: Oddly enough, more fondness for Annie, and a sense that the extent of their friendship was a secret. (This is headcanon, as it's shown that the three were likely childhood friends, but due to their "mission," they didn't hang out much in their trainee days.)

Player: Jan
Character: Ryan Brown/Reiner Braun
Reason for Echo: Seeing Alan's sweet Survey Corps jacket.
What is returned: A jacket of his own! It's not really Ryan's style, but he'll recognize the symbol from some of his previous echoes. Maybe also that the symbol on it belongs to the "Survey Corps," though he won't remember what that is exactly. (Second bit is optional though, if it's too much, just the jacket itself is fine.)

Player: Jan
Character: Ryan Brown/Reiner Braun
Reason for Echo: Alan mentioning he lost a bunch of his limbs, but they were gonna grow back.
What is returned: Power upgrade! Ryan would regain the ability to heal larger wounds, and faster (no regrowing limbs yet though.) He probably won't find this out until later, anyway.

Player: Jan
Character: Ryan Brown/Reiner Braun
Reason for Echo: Alan suggesting they knew each other in their past lives.
What is returned: The fact that that speech Reiner told Eren (a previous echo) was told to Eren. So it would kind of just un-blur the memory.