But since you have doubts about my list, i would love to hear whats your top5 richest nations of this ATL

. Basically every one that wants to put his own top 5 list, would be more than welcomed.
Wel... comparing the wealth/trade density map to the territories controlled by various states, I'd say that the Diodotian Empire might be about to
become the richest state, but only now that it has captured northern India. Still, it'll be a very close run thing with... the Seleucid Empire. You have them at nr. 4, but they control both Mesopotamia and the region around Antioch: two of the richest areas in the world (both in OTL and in this TL). If I were to guess, I'd say the Seleucids are number one, but are about to be edged out by the Diodotian Empire (which profits from the Silk Road the most, and is about to profit from having super-wealthy northern India).
The Ptolemaic Empire is number 3 by my estimate. If they can provide a better route for trade than the Seleucids (as I have mentioned before), they can start to expand and edge out the Seleucids, becoming number 2. Capturing Antioch and depriving the Seleucids of their Med coastline can help then additionally.
The Massaliot League is likely number 4, but that's close-run with the Samprati Empire. Unless the Samprati Empire suddenly becomes wealthier for some reason, the difference between them will increase, because west African trade is the key factor here. Without it, Massalia would be number 5 on the list, but since it is only growing and growing, that trade will make Massalia richer and richer.
So, if we assume a situation where the Diodotian Empire has just overtaken the Seleucids...
1. Diodotian Empire
2. Seleucid Empire
3. Ptolemaic Empire
4. Massaliot League
5. Samprati Empire
EDIT: some further notes.
Number 6 is almost certainly Satavahana.
Number 7 is almost certainly Pergamum.
Number 8 probably Carthage, but Carthage is a dwindling power now that it has no real navy left and Massalia controls basically all trade. Perhaps the Carthaginians are their allies, the Garamantes, to exploit trans-Saharan trade with the Soninke and the Nok Kingdom? That might be one way to stay standing... but Carthage is still declining, no matter what.
Number 9 is probably Sparta, which has done well for itself. If the Sparta-Athens military alliance is counted as a whole, that's maybe even number 8, and certainly in position for number 9.
Number 10 (if not number 9, just ahead of Sparta) would be the Bosporus Kingdom. They are on the rise, and if they keep it up, I can see them advancing a place or two in the coming decades.
Number 11 would be the Chola Kingdom.
Number 12 would be Macedonia.
Number 13 would be Athens (if counted separately from Sparta).
Number 14 would be Rhodes.
Number 15 is very hard, because it's either Rome (already established) or Eschate (fledgling, but with much more potential). I'd say it's currently Rome, but soon to be Eschate... and Eschate has the potential to rise very rapidly.