Lightweight Hatchets are great!
OP - I know this is originally about your experience with your MVP discs, and not so much about recommending other discs, but I do suggest you think about narrowing your search to certain manufacturers. Because - as others rightly have pointed out - the flight numbers are (at best) references to other discs made by that manufacturer, and not to discs in general.
I've been through a bunch of brands, and here's some of my experience:
Look for consistency between runs. All discs vary a bit from run-to-run (molding lightweight aerodynamic plastic discs is not an exact science). In my experience with Prodigy, their discs really varied a lot - so it was difficult to find replacements and/or backups once I knew I liked a disc.
Look for availability. I love Mint Mustangs and Lobsters - but I have to stock up, because as a small producer, there can be long gaps between inventories. That was a pretty big problem with Discmania when Innova was their manufacturer, and that's one the reasons I got away from bagging them.
If you have a slower arm, think about break in. Innova Champion plastic is notorious for starting out overstable, and staying that way for a loooong time. I lost patience, and moved on. Other "Champion-like" plastics can be the same. If you haven't already visited this site, it's good reference for comparing plastics:
https://flightcharts.dgputtheads.com/discgolfplastics.html
Speaking of plastic, find some that feels good to you. One of the things I like about MVP is the plastics. I always like Neutron - and it's generally not priced all that premium. That's also why I bag Mint discs - because they're made by MVP (slightly different plastic formulas, but generally very consistent and feel great. The other brand I love is Kastaplast. I bag the Reko and the Berg in various plastics. These aren't the only ones by any means (people love Lat 64's blends). The point is to find something you like
If you put these things together, you'll find yourself gravitating toward a smaller set of manufacturers, and a narrower field of discs to shop - which helps a lot.
And one unrelated plug for MVP - don't forget to consider their Streamline brand. Same plastic. A little less availability because of smaller runs. But they're not overmolded, so you might find less stability in those discs than you find in MVP or Axiom.
Happy shopping/trying/throwing!