I can suggest some popular and evergreen keywords related to "quotes" that tend to generate interest and engagement:
Inspirational quotes
Motivational quotes
Love quotes
Life quotes
Success quotes
Friendship quotes
Happiness quotes
Positive quotes
Funny quotes
Wisdom quotes
Leadership quotes
Change quotes
Encouragement quotes
Self-improvement quotes
Famous quotes
These are just a few examples of keywords that often generate interest and are widely searched for in relation to quotes. It's always a good idea to keep an eye on current trends and popular themes to tailor your content to what people are actively seeking.