there's something to be said for going to the 1000 and 2000 size reels.
Especially in Shimano and Daiwa, the 500, 1000 and 2000 size reels use the same size reel bodies, different length handles.
A slight difference in spool diameter, but a significant difference in spool stroke (and spindle).
If your goal is casting distance, you gain a lot more with a 1000-2000 size reel,
If you're looking at high grade light materials like the composite CI or magnesium (Vanquish), there's no real weight difference
(the Vanquish is the lowest inertia - lowest moving mass - reel ever made).
And of course you also gain worm-gear oscillation with the higher grade reels, and the excellent line management that brings
The Soare CI4+500S weighs 140g,
while in C2000 sizes, it weighs 160-180-g, depending on which longer spool/stroke.
The Vanquish C2000S is 145g.
These are Shimano's two highest-grade UL reels.
If you want most of these features for half the cost of those flagship models, look at the Shimano Stradic 1000 sizes, FK, FL, and CI4+