The location of the Eidolon spawn is the same for everyone each day (however everyone is able to go find this Eidolon once each!). You may share this location with others, but if you choose to share in the Discord server, please use a spoiler tag so that anyone who wants to find them on their own has a chance to do so.
Eidolons will not show up on Lythian profiles/masterlist entries. Other pages of the site are fair game!
You can find one Eidolon per day until the end of the month, so please check back each day to make sure and collect the full set! Make sure you are logged in, or you won't be able to see them.