Twiggie Muscowy
andrew4250 England
BarbarossaTSG Brandenburg
Azthor France
Chosrau Ottomans
Karlito Timurids
Fivex Mamluks
Stabbymcstabstab Austria
Deathsword Portugal
Inteuniso Burgundy/Morocco if you really really want
Isdar Vijayanagar
Bulborbish Delhi
Grand Nagus Castille / (Poland/Denmark/Sweden)
Malus (Poland/Denmark/Sweden) / Castille
Tarran Naples/Milan
Descan Oman (late)
And dutchling subbing
Given the lists I think that gives each player enough space to spread a bit. The most clustered nation is probably France, but I daresay they're also one of the most powerful nations at the start, so I'm not particularly bothered.
Inteuniso, I'd rather put you in Burgundy than Morocco to balance out Austria and France's power. If you really have your heart set on Morocco then you can, but I feel Burgundy is better for game balance.
Grand Nagus and Malus, one of you is in Spain, the other is in Scandinavia or Eastern Europe - I put the best nations as choices. These nations are needed as a balance to Muscowy and Western Europe. You don't have to play here, but these are the best spots game-wise. Whichever of you doesn't take Spain can also go Italy if tarran doesn't.
Tarran if you want to play Italy is pretty much unoccupied.
I think everyone else has their first choices pretty much, except the Asian guys, Isdar and Bulborbish. I put you in Delhi and Vijayanagar to make sure that everyone has some player interaction relatively early. Playing in Ming or Japan just leaves you a bit far out.