Fish recommendations please: 30g cube

[Willu]

I currently have a purple fire fish, a yellow watchman goby w pistol shrimp, and a yellow banded coral shrimp. I really want 2-3 more fish, I was thinking maybe 2 cardinal fish (pj or bangaii), and I don't know about the last. I would like a fish that is relatively active and isn't too timid and not too aggressive, besides clowns as I have a pair in another system. I have a pretty good rockword with lots of small and large crevices.
Originally, I would have loved to get a 6line wrasse, but I am too worried about aggression issues especially with my firefish, and I had a similar line of thought with dottybacks. And unfortunately I have not been able to find a pink streaked wrasse as I though that would have been a good addition.
Any suggestions for fish would be appreciated thanks!

 

[Katrina71]

Pink streak wrasse.

 

[Quietman]

Sounds like you know what you'd like already...just be patient and wait to get what you want.

 

[hllb]

My royal gramma is a great fish. I also have a midas blenny in QT right now that has an awesome personality.

 

[Iván Olalla]

Tailspot blennie, smaller than lawnmowers, peaceful and with lots of personality, not shy at all!

 

[luv2lopeqhs]

Here’s a couple of more to consider:
Yellow or Randall’s Assessor
Red Neon Eviota Gobies (you can get a small group of these) they are super small, low bioload and super fun to watch. I have one in my 20 Cube that was a left over from an order of a small group another person placed at my local LFS. I took him home and he’s been a great addition to my little tank. I’ve included a couple of pictures of him.

 

[Jon Fishman]

A valentini or similar puffer would do well. Just be mindful of the other fish for bioload etc

Not sure on the shrimp though!

 

[Jesterrace]

I'd go with a Royal Gramma Basslet in a tank of that size if the Pink Streaked isn't available.