First off welcome to reef2reef and we are glad to have you. I have comprised this list below as a general guide to help you get started.
First I would like to start with an approximate timeline of when you can start adding things to your tank. (This is what I did and for the most part it seemed to work for me.)
Here is my timeline after I started my cycle:
2 weeks: snails and hermit crabs (I had to feed them because of how new the tank was)
1 month: first fish (2 clowns)
Added 1 new fish every 3 weeks after clowns. I stopped at a total of 9 fish but will probably add 1 or 2 more once some of my smaller fish grow.
I would not add any more that 2 fish in your tank due to its size, after the timeline I have a list of fish you could add.
4 months: first corals (mostly soft coral and a few lps)
6 months: first anemone (it died)
8 months: more challenging coral (scoly and meat coral) and first starfish (2 sand sifters)
1 year: second attempt and anemone (it has since split and is doing great)
15 months: serpent stars and brittle star (I could have added this earlier) high end coral (jawbreakers, and high end zoas)
I still do not have any non-photosynthetic coral or sponges but by this point I could probably add some. I also do not have any sps. I plan on adding this within the next 6 months.
Keep in mind this isn't set guidelines you should follow but it's what I did with good success, except for the first anemone. I added him too early for sure
Below is a list of the fish you wanted and some others that would go well, and some to avoid. I only listed fish that are "reef safe" for obvious reasons if you are planning to add corals you shouldn't get any non reef safe fish. ALSO PLEASE REMEBER 2 FISH MAX FOR A TANK YOUR SIZE!
Tanaka's Pygmy Wrasse - good fish but could nip at some small inverts. He's a jumper so if you don't have a lid don't add him. Also very shy so you may find him hiding a lot
Shrimp Goby - This and all the other gobys you listed are totally fine to add
Pistol Shrimp - safe to add but you will have to check iodine levels to insure it can molt
Purple Firefish - Good to add. I have one in my tank and it is one of the more shy fish I have
Ocellaris Clown - got 2 of them, totally fine for your tank but if you add 2 I wouldn't add any other fish. They can become territorial and be aggressive with tank mates
Neon Goby - see above
Clown Goby - see above
Royal Gramma - good fish to add
Chalk Basslet - good fish to add
Six Line Wrasse - good fish to add, as a bonus this guy will scan corals for unwanted pests
Flasher Wrasse - your tank is a little too small for this guy
If you add a wrasse of any kind do not add another wrasse, they will fight and one will kill the other
'Reef safe" Fish to avoid include: all tangs and drawf angels
To give you an idea on some of the coral you can add take a look at this list. This will help you decide what type of coral is right for you.
Coral that is good for beginners: zoanthids, mushrooms (avoid jawbreakers and Bounces), favia, star polyps (caution needs to be taken as these can be invasive), nepthia trees, montipora, trumpet coral, chalice coral (must be less that $60 for about a 1 inch frag)
Moderate level corals: expensive chalice, frogspawn, hammer coral, galaxy coral, brain corals, plate corals, bubble coral, blastos (only solid red, or red and green) acans, cynarina (green only) torch coral (green) Duncan coral
Hard Level corals: scolymia, acanthrophyllia (meat coral), cynarina (reds, yellows, pinks), red gonoporia (red flowerpot), gold torch coral, jawbreaker mushrooms, blastos (the ones with yellow are the hardest), high end zoas (stratospheres and speckled kraks are some of the hardest),
Expert Level corals: gorgonians, all non-photosynthetic sponges, sun coral, green flowerpot, carnation trees, elegance coral,
Since I do not have any sps I did not list them here. From what I have heard I would put them on the moderate to hard level corals.
If you have any questions feel free to Pm me or comment on here. Happy Reefing
