Poking at growth prospects. Of our present available aspects we can buy...
-Element of Earth - Unlocks soil fertility blessings. This would probably in combination with Stave Off, allow us to much more rapidly expand our population and thus DE budget. Good pick for an early buy. Over time may lead to opening up Life stuff via the Fertility route, which is the thing the monster lovers are probably looking forward to.
-Element of Fire - Gives our people controlled fire, which they already make use of in their rituals, so the immediate boon is likely wider ritual work. Expands Pottery. Assuming the originals are any indication, Fire + Earth gives us Obsidian, and later Metal. Oh and between Fire and Death if someone comes attacking we could do a bit more impressive stuff, given DE to burn.
-Spirit of the Ancestors - Bigass boost to Loremaker, which is our Cultural skill. Hadn't seen what it does yet since we hadn't done those Inspires, but it makes us a spirit of Tradition/Humanity, which is a somewhat humanizing role. Our appearance would be more human-like, but with markings of death.
-Ashform - This is an Avatar type effect. Be resistant to damage by being made of ashes, which PROBABLY comes with some weakness to water or wind attacks dispersing it. Low-ish priority, but it does potentially give us an avatar without picking a given fixed form. If we find a neighbor thats hostile this might be a higher priority.
-Aspect of the Hawk - Boost to two types of Destruction...unfortunately our entirely combat ability is "low random chance of death", so that isn't very significant yet. Gives some kind of flight, and boosts scrying results, so it's somewhat useful. Phoenix lovers want it of course.
-Obsidian Patronage - Currently useless. We don't have any obsidian yet.
-Aspect of the Greater Lizard - Large reptile form. Good for those who want to be a dragon(well, large lizard for now, dragon is a long way off yet). Immediate practical use is very low, since we don't even have Peerage skills yet, and the +5% is negligible when the skill is 0.
Bolded for most immediately useful purchases. Unmarked for stuff that's of limited immediate utility. Strikeout for stuff which are not currently useful, though they may be super desirable later
Assuming we're left alone after those guys run screaming(which is a little dubious), investing into an Earth aspect at the next juncture would get us a useful population growth bootstrap. Bonus if we can snag both Earth and Fire at once and go straight into Inspiring pottery.