Thanks for all the replies, I think i will go with Sascha. I think for me this looks visually better. I wouldn't want to put an extra 'r' in the mix. Thanks to the Sacha who replied, I did see this spelling while researching the name but did not want to add more choices to my list. I know the name is a nickname in Russsia for Alexander and Alexandra, i like these names but have a brother called Alex.

Thanks to everyone for helping me decide.