What are the eight gym leaders of glazed?

There are actually eight gym leaders in Pokemon Emerald, not glazed. You're likely thinking of a fan-made ROM hack called Pokemon Glazed. Here are the eight gym leaders in Pokemon Emerald:

1. Roxanne (Rock) - Petalburg City

2. Brawly (Fighting) - Dewford Town

3. Wattson (Electric) - Slateport City

4. Flannery (Fire) - Mauville City

5. Norman (Normal) - Petalburg City (He's the father of the protagonist)

6. Winona (Flying) - Fortree City

7. Tate & Liza (Dragon) - Sootopolis City (This is a double battle gym)

8. Wallace (Water) - Ever Grande City (He's also the champion)

If you're referring to Pokemon Glazed, I'd need more information to help. Which gym leaders are you curious about?