small budget you can buy...
3k geo filtered clicked text links to exact countries you prefer $27
5k regular traffic clicked text links $35
I personally run geo filtered
Traffic-Out
price depends on type of traffic plug, blind, pop, mobile and how much you fine tune the country selection, I usually run geo english plug traffic, minimum paypal upload is $10
Plug Rush
each site lists their own prices, I would try to pick sites that match your content and that have a high ratio of their traffic coming from high quality countries. If looking to spend a higher budget you can request a campaign to run across their whole network and geo target it. minimum paypal upload is $50
Juicy Ads