The Best Beginner sports bike?

Guys I'm new to motorcycling and I'm really enthusiastic about it. I'm gonna buy my first bike by the end of this year Budget is not really an issue here, I can extend my budget Looking at the power, specs, mileage. Duke 250 seems like an all rounder to me I have other options in mind -Triump 400s (worried about service and spare parts) - honda cb300r (really old now, needs a refresh imo) - RTR 310 (but the design and features are too dramatic) - new RR310 - Ninja 300 (accessible seat height + parallel twin, but it's a discountinued bike and also not VFM compared to other competitors) If you guys have any other suggestions please let me know [I was also thinking about 390s, 650s and the new 457 but ik I can not handle that much power.]