I don't get why you think he's not a good fit with Booker. He worked fine with Donovan Mitchell. Mitchell penetrates more than Booker and Booker is a better 3pt shooter than Mitchell. I know percentages may say Mitchell shot better from 3 than Booker last year but that was with Booker being forced to handle the full load offensively as far as creating for others and himself while dealing with a busted hand for the first half of the season. When he has someone kicking it out to him again, his 3pt % will increase. He shot 38% from 3 in 2017-18 season and I'd be willing to wager he shoots the same or better with Rubio setting him.
Rubio will have more players to set up than he has anywhere else. In Utah he had Favors and Gobert inside, which clogged things up, he'll have Ayton and Saric in Phoenix. He'll have Booker and Oubre/Bridges here also, which is comparable to Mitchell and Ingles but Booker > Mitchell however Ingles is a better shooter than either Oubre or Bridges. In Minnesota he had Wiggins, Towns, LaVine, and Dieng starting with him. So Towns was playing PF, Dieng can't shoot, Wiggins sucks, and LaVine isn't a good shooter either. I think Rubio could very well have a career year if Monty lets him run a wide open offense.
