What other processors work with kraken?
I heard about revolut, mistertango and advcash but i am not sure whhich is best.
I need a business account with one of them and anonymity would be nice too

As I know, you can open business account on Mistertango and it's crypto-friendly online bank, so there will be no problems to send money to Kraken and all other exchanges.
But you can't expect to stay anonymous by using online bank. For personal account they will ask to upload scans of ID card/passport and selfie. I'm not familiar with business accounts, but I think they will ask for even more personal information.