Linfarim (Glowing balls of light) In Evendim
The Tombs Annuminas Instance. At lv 75 you can set the instance to lv 40 and solo in there. One of the Anor Knights spaws 3 Linfarim when you enter the room. They can be killed, and you can leave the room which resets the Knight, you can reenter and respawn the Linfarim instantly.
One of the Tombs that has a lv 40ish quest for the Rangers on the road to Annuminas spawns Kergrim very fast.
Lv 40 Sig Wood Trolls are in Giant Valley.
Either Giant Valley for lv 40 Sig Drakes, Silvertine Loads South east of the Goblin Camp for Normal lv 53 Drakelings (which have their own deed), or South East Angmar lv 50 Elite Drakes for Scales.
North and West of the Zirik Dwarf Town there is a large camp of lv 47-48 Guardain.
The Steam Springs just north of the Dwarf Town.
Spider & Globsnaga - Moria :
Go into the Skumfill instance, and go to the basement where the spider boss is.
The spiders just keep spawning in there, and count as both Spiders and Globsnaga in Moria.
The bonus is there is also a deed for killing spiders in Skumfill, completing 3 deeds at once.
Beast/Craban - Dunland :
Crabans also count as beast, so go to Rooks Hut/Cabin and complete the Craban slayer deeds, completing Beast at the same time.