(The type 8 slot is easy to fill, so I'll stick with the type 4 slot here.)
You can search for this on EQItems using the "Guru search".
Use these criteria, connected by "AND"s:
"mana >= 30"
"itemtype = 54" (item is an augment)
"augtype & 8" (augment can go in a type 4 slot)
"classes & 32" (druid usable)
"slots & 8192" (item is equippable in primary)
By far the best option is any BiC augment.
Apart from that, you have the two hp+30/mana+30 augments:
Gem of Bolstered Power, from the enraged maternal cragbeast in Tipt
Cipher of Veeshan, from completing the OLD Veeshan's Peak key then killing the dragon in Skyfire to get the new key
Gem of Whirling Auras is another option (mana+50) from an LDoN raid.
You could also go with Thrice-Warded Malachite (+10 to MR/PR/DR/FR/CR) or Warded Dragon Egg Fragment (hp+10, +8 to MR/PR/DR/FR/CR) from DoN merchants.