I have around 12 reloaders but I mainly use one of 5 MEC 9000s including an automate in 12 gauge running on a common sewing machine pedal.
I would recommend staying with 1oz or even 7/8 for practice. I shoot 1oz of 7.5 for sporting clays tournamemts and have zero problems at long distance breaking clays. I shoot 7/8s for practice. More loads per pound brings costs down. I also shoot some 3/4oz stuff in 12 gauge. It'll surprise you.
The best hulls now are Remington sts but anything Remington is good. Winchester lost ground with AAs when they went to their two piece hull. New Federal HOA hulls are actually rebranded Remington STS.
You'll want to find your most economical load with powder.
Find loads dropping 17 grains or less. I like Alliant e3 or Extra Lite. Hodgedon Clays is good also. Pick your powder for efficiency and don't try to load the fastest shells out there. You don't need to. My scores actually went up when I dropped from 1 1/8oz to 1oz and my practice scores went up again when I dropped from 1oz to 7/8. 7/8 loads pattern very tightly and will break targets for a long way but I still go to 1oz for tournaments. I shoot either at 1180fps. All 7.5s. I do shoot 1 1/8 at doves. All 7.5s and I use magnum hard shot for everything. I ran a sporting clays facility for years and have been a target setter and sporting clays instructor for the last 15 years. I'm a AA class shooter and was well on my way to master class when component prices and injury sidelined me.
Feel free to ask any questions about loading. I've used about every machine that there is and have found that Mec does everything I want to do for a lot less fuss and $. You'll find it difficult to tell my reloads from factory. I Particularly like the Mec 9000 series. I have one Ponsness Warren machine and I regret the day I bought it. I can make shells with it but it's picky, fickle, and a PITA. But you may want to start with a single stage machine unless you can find a good mentor to get you started on a progressive. There is a learning curve on all of it and a good mentor can save you a lot of time.