Here's my Monsters by CR table for the updated (non-pdf) version of the bestiary:
CR 57- Devastation Swarm
CR 55- Ahat-Hir
CR 53- Azathoth
CR 48- Tiamat
CR 45- Dendar, Primus, Astral Protean
CR 44- Tharizdun
CR 43- Bahamut
CR 40- Mual-Tar, Moradin
CR 39- Bane, Corellon Larethian
CR 38- Godforged Colossus, Bolothamogg / Yog-Sothoth, Gruumsh, Ioun
CR 37- Tharizdun, Maglubiyet, Palor, Emrakul, Greater Draeden
CR 36- Hecatoncheires, Erathis, Garl Glittergold, Myrkul, Yondalia, Zehir, Alduin, Balcoth, Ityaak-Ortheel, Shub-Niggurath,
CR 35- Avandra, Kord, Melora, Solcara, Baak, Demogorgon
CR 34- Loth, The Raven Queen, Sehanine, Vecna,Torog, Timesus, Cthulhu, Asmodeus
CR 33- The Lady of Pain, Ulamog (The Ceaseless Hunger), Orcus, Graz-zt, Iron Colossus
CR 32- Piranoth, Dagon, Fraz Urb'Luu, Miska the Wolf Spider, Obox-Ob, Pazuzu, Mephistopheles, Kozilek, Great Wyrm Gold Dragon, Great Wyrm Red Dragon
CR 31- Tharizdun, Tiamat-Avatar, Zaphkiel, The Queen of Chaos, Baalzebul,Great Wyrm Blue Dragon, Great Wyrm Silver Dragon, Titania, Tarrasque, Rillfane Rallathil, Kyuss
CR 30- Waukeen, Sealtiel, Lakkar, Maegera, Arendagrost, Xixecal, Phaethon, Umbral Blot, Great Wyrm Bronze Dragon, Great Wyrm Green Dragon, Emmantiensien, Oberon, The Queen of Air and Darkness
CR 29- Bane(Avatar), Semuanya, Raziel, Pale Night, Dispater, Geryon, Great Wyrm Black Dragon, Great Wyrm Copper Dragon, Damh, Eachthighern, The Prince of Frost, Draeden(Lesser)
CR 28- Devastation Beetle, Sekolah, Domiel, Pistis Sophia, Baphomet, Malcanthet, Yeenoghu, Stone Colossus, Great Wyrm Brass Dragon, Great Wyrm White Dragon, Skerrit
CR 27- Kurtulmak, Hruggek, Bachiel, Erathaol, Bjornganal, Kostchtchie, Sess'Innek, Belial, Glassya, Levistus, Mammon, Moloch, Baba Yaga
CR 26- Dibella, Thasmudyan, Zenithar, Juiblex, Fernia, Koliada, Nathair Sgiathach, Verenestra, Genius Loci
CR 25- Iuz the Old, Vaprak, Empyrean, Zuggtomy, Zariel, Ogremoch, Cerunnos, Kraken, Dragotha
CR 24-Hutijiin, Astral Dreadnought, Atropal, Ancient Gold Dragon, Ancient Red Dragon, Cryonax, Imix, 3-Headed Sirrush, Devastation Scorpion, Shadow of the Void, Iggwilv
CR 23- Laogzed, Solar, Amon, Bael, Bel, Eldrazi Swarm, Gibbering Orb, Flesh Colossus, Ancient Blue Dragon, Ancient Dragon Turtle, Ancient Silver Dragon, Olhydra, Yan-C-Bin, Cat Lord,Hyrsam, Squelaiche, Devastation Spider, Protean (Giant), Ancient Treant, Hunefer
CR 22- Blibdoolpoolp, Balor Lord, Dream Larva, Infernal, Ancient Bronze Dragon, Ancient Green Dragon, Primal Elementals (Air, Earth, Fire, Water), Caioimhin, Devastation Centipede, Repeater, Vermiurge, Brachyurus, Dodkong, Ancient Red Dragon (Dracolich), Worm that Walks
CR 21- Titivilus, Elminster, Azathoth, Beholder Hive Mother, Phane, Admantine Golem, Anciwnt Black Dragon, Ancient Copper Dragon, Mournwind/Velayn, Soulsorrow/Loralae, Tayellah, Mu Spore, Acerak, Lich, Winterwight
CR 20- Aire, Balor, Pit Fiend, Eclavdra, Merlin, Eldest, Chichimec, Anaxim, Ancient Brass Dragon, Ancient White Dragon, Hoary Hunter, Sirrush, Ruin Swarm
CR 19- Cat Lord, Prismasaurus
CR 18- Fionnghuala
CR 17- Arthur Pendragon, Strahd
CR 16- Mordenkainen, Elder Treant
CR 15- Iggwilv
CR 13- Morgan Le Fay