It is hard.

I moved to Germany in 2018, and only just this month reached B1 level in the language; and that was a pre-Brexit move so I don't need to care about visa.

The EU has a "blue card" scheme modeled on US green card: https://en.wikipedia.org/wiki/Blue_Card_(European_Union)

If language is your biggest barrier, pick a country whose language you already speak. As this clearly includes English, Ireland if you want specifically EU, and UK if you just want the continent (mainly London, but I spent a long time in Cambridge tech sector).

Germany may still be an option even without being a native speaker (depending on your skills), but with all the difficulty everyone has today with AI messing with job hunting, get the contract before considering a move.