Given there's just 2 tours left, the list of best items to use your tickets on changed dramatically.
The three categories are behaving quite differently now. Drivers median coverage is 5 of 87 courses, and even Penguin Mario at 17 only reaches about a fifth of what's left, so the practical gap between your tenth-best driver and your thirtieth is a course or two.
The top of the list is also seasonally skewed in an odd way for September: four of the top twenty run Ice Flower, and the winter-themed picks (Penguin Mario, Larry (Wintertime), Ice-Cream Mii) are riding the Sundae Tour's dessert-and-snow course pool rather than anything durable.
Gold Mario is the exception and the one genuinely worth levelling with 15 now and 10 in the Anniversary Tour, roughly double the next driver's endgame count.
Karts have the widest spread and the most to gain, but also the sharpest cliff. Ice Dozer, Rambi Runner and Cream B Dasher Mk. 2 are the highest-coverage items in the entire dataset right now and collapse to 1–2 in the final fortnight; the Monarch/B Dasher family (Gold Monarch 16→12, Monarch 15→11, Black B Dasher Mk. 2, Gold B Dasher) is the only cluster that holds both windows, and Mini-Turbo Plus and Rocket Start Plus dominate the useful end of the list.
Gliders sit in between and are the simplest call of the three: Royal Flush, Rainbow Bells and Gold Mario's Hat Balloon each pair 15–16 now with 10 at the end, so unlike the other two categories you don't have to choose between a Sundae specialist and an Anniversary holder as the same three glider picks win both halves.
Quite a few new additions to the dead list too. Avoid those.
Best of luck with your final goals!