I'm not sure if a dichromate alternative has ever been worked out for the bromoil process. This automatically means that there's no legal way to obtain a bromoil bleach in Europe.
The obvious routes are thus:
1: illegally obtain dichromate. This shouldn't be too difficult since it's still around in singificant quantities and there are probably several sellers who will shop small user quantities regardless of legislation. It's also something unlikely to be on the radar of law enforcement agencies.
2: explore other processes for making your prints. Sadly, bromoil is rather unique and as such it will be challenging to come up with something really comparable.
3: be the first to work out a suitable alternative process that circumvents the use of dichromate. I can imagine that the kind of double transfer process used for DAS carbon printing might be made to work with an additional inking step. The process would then be a regular double transfer carbon process but omitting the pigment in the gelatin matrix, and after the transfer to the final support, an inking step would be added. Whether this would work well with the gelatin - sized final support, I can't quite predict. The process would be limited to contact prints as well, which would make it a little less flexible than true bromoil.
The short answer is of course you're technically SOL.