Quicksilver Priorities

Obligatory notice: I play on Nintendo Switch. Now that I can do Nexus missions and earn quicksilver, are there recommendations on what I should work towards? I like that for most of the items I have to spend several days to get enough banked to buy stuff, but it makes me hyper-aware that I should be wise about it.

Like I already got the egg to get a living ship (love it!) and the -null- bobblehead because better shields seems like a nice thing to do for my ship, but what now? do I get more exhaust trails? Do I get more bobbleheads? What about the other backpack, I'm getting real tired looking at the default one.

I'd be very curious to hear about what order people picked things up in, or what made them make the choices they did. Anyone feel like sharing their preferred buys?