I think you should research the political directions of European countries and figure out which one is most ripe to head towards increased meritocracy. I don't know much about current politics myself so this is all theoretical. But you're at a perfect time to position yourself, before you've built up a network of contacts.
But I don't expect that you would be able to find a system you could be happy in for decades by jumping now, any more than people can find a happy marriage with the first person they ever date. You might have to jump to get it out of your system, or to figure out what you're capable of, or to learn what's out there. Then once you have a better sense of your strengths, you can position yourself more strategically to make a long-term impact.