Adjectives to describe a good person with the letter "G":
General positive traits:
* Generous: willing to give and share; charitable.
* Gracious: courteous, polite, and kind.
* Gentle: mild-mannered, kind, and considerate.
* Good-natured: kind, pleasant, and easygoing.
* Grateful: showing appreciation and thankfulness.
Specific positive traits:
* Gallant: brave, chivalrous, and courteous (especially towards women).
* Gullible: easily persuaded to believe something, but often used with a negative connotation.
* Giving: willing to share, donate, or contribute.
* Guiding: offering advice or direction, helping others find their way.
* Goal-oriented: focused and determined to achieve their objectives.
* Genuine: authentic, sincere, and honest.
Other related adjectives:
* Goofy: silly and lighthearted.
* Glad: happy and pleased.
* Glamorous: attractive and stylish, but often used with a superficial connotation.
* Glimmering: shining brightly, reflecting hope or joy.
* Grand: impressive, magnificent, and extraordinary.
Remember, these are just a few examples, and the best adjective to use will depend on the specific qualities you want to emphasize.