Ireland uses a variant of ranked choice voting. In essence, voters get a list of candidates for their voting district, and rank as many of them as they want in order of preference. When votes are counted, the candidate with the lowest votes is eliminated, and votes of those who ranked the candidate first are distributed to their second choice. Rinse and repeat until only as many candidates remain as there are open seats in the constituency.

There is still some inertia, especially in rural areas (“my dad always voted for this candidate, so I’ll vote for his son”), but the system still lends itself to more informed voting. From what I’ve seen in other countries, on average Ireland does a better job at electing more reasonable candidates than the US or EU countries.