I've never seen him play but Keith Law his him ranked 3rd overall and calls him "one of the best pure hitters in the minors". If that's true I'd trade Sano for him in a heartbeat, as much as I would hate to trade Sano.
Hadn't seen that one yet. MLB.com says he's a 60 Hit, 60 Power, 55 Field. BA says he has the best hit tool, best defensive infielder and is the best athlete in the Athletics organization; though his actual scouting report is behind the paywall as is Baseball Prospectus'.
If he is as good a hitter as Law thinks than I agree that it would be a good trade. Russell doesn't seem to have the concerns about sticking at SS which is huge from a positional value perspective and can potentially make up for the lower power potential compared to Baez and Correa. I think I'd still rather have Lindor the most but as I said earlier that is my own biases showing up.