I know it's hard to accept this, but we are coming back to Wano at some point, not FOR Pluton, but because opening Wano's borders is an important plotpoint to the endgame. It was Oden's dying wish and it won't be accomplished by some villain off-screen.
I know that you're still going through the stages of grief in relation to Yamato, being paired together with kin'emon must be tough, but bargaining that "everyone lost" is not the right way to deal with this.
It will only hurt more when Tama inevitably assumes her place as nakama.
Not only that but Tama not only specifically asked about joining when they met again but the issue with Momo and his group was that Luffy just said that if they changed their mind about living in wano they could call him. It had the same energy as him promising shirahoshi that she would travel with him later.
Tama is the only actual candidate that appeared in wano. The only one with a chance is Vivi.