However, I still look for new platforms from time to time and will now try out Whale.io for the next German Bundesliga matches. The number of soccer leagues there is also very good and the odds are also very fair at first glance. So it would certainly be worth a try.

If we simple talk sports then there is no better site than pinnacle, period. The have the best odds by far. But there is also a catch. While they offer crypto deposits and withdrawals your money gets converted in to fiat first. Also, processing is not as fast as at all the crypto sites. Another thing that is not up to standard is that they don't really have an award system like most sites do these days.
But yeah, if we are only talking odds, pinnacle is the place to be. Ah, and support is also much better than BC, but which site isn't.