Thank you! All letter combinations are interesting. I like quizzes with letter in all positions, not only as first or last letter. Country names is good quiz type for this, because the search space is big enough but has well defined limits (196 names). Maybe there are other good types, also others than countries and their capitals?
It’s basically ‘Countries starting with a’ but there’s no Azerbaijan 🇦🇿 or Afghanistan. (All the good geography quizzes are taken)