What is your goal?
I assume when you say "glasspack" your talking about the old style straight through muffler, which I find to be obnoxious, especially on a small low power engine, and they often produce a lot of drone.
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Magnaflows are nice, but likely out of your budget range. For your budget, DynoMax is a good option.
https://www.dynomax.com/
If you want more rumble without drone, a turbo-style is a good option.
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A bigger "Ultra Flo" will be somewhat of a gap filler between the turbo style and traditional glasspack. Bigger muffler body = more decibel absorption
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There's also the chambered style if you like the sound of Flowmaster, and that's likely within your budget. Again, bigger muffler body = more sound reduction.