Regen Second Nationalities

I know that English club teams regularly produce regens with Jamaican as their second nationality, which was a great help to me when I managed the Jamaican national team. For future reference, I was wondering of anyone knew of any other countries that produce a decent number of players of a certain second nationality. It makes managing small countries, which I really enjoy, much more manageable. Thanks for any help.

France gets a lot North and West Africans. Algeria, Morocco, Senegal etc etc

France has a few countries associated with it, Martinique, Reunion etc

I often see German regens with Turkey second nationality. Also seen a few English with various Caribbean nationalities.

I found an amazing Argentinean regen with French as his second nationality, that helped me to get a work permit, but I'm not sure if that is common or not.

Both David Trezeguet and Gonzalo Higuain have that in real life so it should happen.

I have had a few Italians with San Marino as 2nd

Vaguely on a different topic, but I felt a bit naughty picking a guy called Luis Miguel Ortega (or something like that, a regen right wing-back) for scotland. I had no such misgivings at picking ted etchart a french regen as his name probably sounds more brit than french anyway!. Both of these are from the "5 year" rule though.

had an English/Brazilian player come up through the Southampton academy

German Greeks also

Both David Trezeguet and Gonzalo Higuain have that in real life so it should happen.

Di Maria too I think.

I found an Argentine-Spaniard called Federico Bermejo, an English-Italian called Enrico Fiorucci, 2 English-Scots called Jim Stewart and Jack Davis, a French-Moroccan called Taoufik Dibi, a French-Guadeloupian called Mourad Perrin, a Swedish-Turk called Fatih Kara, a Dutch-Turk called Fatih Deniz and an Austrian-Turk called Gokay Inan just from the teams I've managed in

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