For some reason people tend to forget that the only reason why Naruto Learned Sage Mode is because.
1-Jiraya Died and left a Code entrusting it to Naruto!
2-Fugaku would had never trained Naruto.
3-Minato is alive so he will still be in Everyone's minds even in Jiraya's '''Minato is the child of the prophecy'''.
4-Maybe Jiraya would have never taken naruto in his travels. (but even when he did, jiraya never talked about it or thought about SAGE MODE with Naruto).
Naruto might have Shadow Clone Flying Thunder Broken which is a

more imba Broken version of the FTG.
-Sealing jutsus from his mother
-Naruto might have toad contract but i remember he always used kyuby chakra for that.
-better chakra control
-more skilled and tactical than what he is, since he wont be depandable of kyuby saving his Ass!.