I sugest taking the Eastern Mediterranean islands, since they're really good at providing naval bases to strike from into Ptolemaic territory, not to mention they bring a lot of trade through their ports and they're relatively undefended. Once you take them there's really not much danger in loosing them either.
The Atalids homelands themselves are what give them their best troops, so consider an expedition into egypt proper. From Nikaia you should be well positioned to keep the relatively harmless troops the Ptolemies recruit there at bay, specially if you build some good fortifications there.
The Makedonians could probably need a help in getting out of Scythia, maybe if you're not interested in a presence on that side of the Danube you should consider giving it to the Getai, to make a decent regional power that can counter the Germans later on. They're reliable allies, from my experience.
Massalia is a natural target for your expansion, and it's extremely defensible not to mention it will serve as an outpost in Gallia Transalpina in future expansion.
On a side note, how did the Lusitani fare against you?
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