I'd only take Sane if it is in addition to a headliner winger like I mentioned above. If we are signing him for limited minutes and depth, we could do worse but I doubt he would accept that role and would likely demand higher wages than we should pay for that role.
I really like Real Betis's young left winger, Jesus Rodriguez. He's very direct and has been great the last couple of months for them. Only 19 years old. Adding him plus a more established winger this summer would be a great way to both address our attack and our lack of depth behind our starters. I want us to be targeting those two profiles this summer for wingers - established winger who is either already elite or has the potential to be elite and then a younger player who can add depth and has a high ceiling.