Netherlands, Solomon Islands, Marshall Islands, Bangladesh, probably more I'm missing? Sorry if I'm mistaken but Libya and Djibouti shouldn't be here, and Egypt only has four.
Perhaps you should specify if you mean only countries with one word?
Otherwise, you should include North Korea, North Macedonia (three consonants in a row in North), and South Korea / South Sudan if you don't count the space (-th K/-th S).
Also, United Kingdom has 3 in a row (-ngd-) as does Turkmenistan (-rkm-).
Otherwise, you should include North Korea, North Macedonia (three consonants in a row in North), and South Korea / South Sudan if you don't count the space (-th K/-th S).
Also, United Kingdom has 3 in a row (-ngd-) as does Turkmenistan (-rkm-).