From publisher blurb:
Call creatures to your summoner's side like never before with Everyman Unchained: Eidolons by Everyman Gaming, LLC! Everyman Unchained: Eidolons is packed with over 40 pages of all-new options for summoners looking to conjure the perfect companion for any adventure, and includes content such as:
12 pages of all-new evolutions based upon existing universal monster abilities as well as the unique powers and traits of certain monsters, such as advanced golem evolutions, fey magic, blood drain, and many more.
15 all-new subtypes for eidolons, including loyal foo creatures, destructive qlippoths, enlightned manasuptras, devious rakshasas, and many more!
Rules that allow summoners to call eidolons of different creature types, including options that grant summoners access to eidolons of the Pathfinder Roleplaying Game's most popular monsters.
And much, much more!