Just catching up on this thread and honestly you might want to be a bit careful with the sales this year. Before I can really give a solid recommendation, what kind of subjects are you planning to shoot with the a9 III? Since that body has the global shutter and hits 120fps, it has some very specific technical requirements that most people overlook when they see a good discount. Basically, if you buy glass with older actuators, youre gonna be capped at lower frame rates, which kinda defeats the purpose of owning that specific camera. I would suggest looking at Adorama Sony E-mount Lens Sales or Focus Camera for different bundles. Just make sure to check if the lens actually supports the maximum burst rate. For example, the Sony FE 70-200mm f/2.8 GM OSS II is built for that speed, but some older or third-party options will definitely bottleneck you. Its better to wait for a specific deal on high-end glass than to settle for something that wont let the sensor breathe...

Yep, this is the way

Works great for me

Make sure you're buying lenses that fit your needs and not just because they're on sale. Check lens deal pages at Amazon, B&H Photo Video.