Anything special needed to land on?

NT Perdurabo is Pollux not a "giant system"?! Or have you ever seen a Maelnir Trader there?

Every giant system has the Maelnir. they migrate, not seen a pattern yet but if i see it i will update

There are five Rainbow worlds at Alpha Gladius A - Alpha Gladius A I - Ancient One, Accolade - Alanmillera, Geminorum - Mithrilar, Fwiffo - Easonir, Serpens - Fable.
Melnorme *ahem* I mean Maelnir *wink* are usually at gas giants, but not every one and not exclusively. There are 21 of them, at:
Alpha Quadrum, Gamma Equus A, Beta Ymir, Eta Orchidum, Iota Priapus, Gamma Cudgel, Iota Tigris, Delta Corpus, Vega, Gamma Tria, EE Leonis, Epsilon Quadrum A, Zeta Mus, Kalidana, Retche, Mu Acerbus, Theta Najmanowicz B, Iota Boklos, Tau Ceti, Arcturus, Alpha Mensae.

I think the Melnorme are present in pretty much every super giant star system

I seem to recall from the original that all the giant stars had traders. Not sure if it's the same, but I've had good luck going to huge starts to find them.

I have found Traders in the following systems;
EE Leonis
Tau Ceti
Zeta Mus
Alpha Mensae
Arae
Gamma Tria
Vega
Eta Wendigo B

@ XT Those listed are all in the corners of the map so i am pretty sure it is listed.
You can not trade the info but it is a good place to load up on exoctics.

I think there was a rainbow world near the lower-right corner of the map. Not sure if that's already listed.

Are you able to trade the rainbow world data to anyone in this version, or is it just a good place to load up on exotics?

I will take a look and will add them to the guide.