And everyone who competes for the prize is temperate in all things. Now they do it to obtain a perishable crown, but we for an imperishable crown.
1Co 9:25
Finally, there is laid up for me the crown of righteousness, which the Lord, the righteous Judge, will give to me on that Day, and not to me only but also to all who have loved His appearing.
2Ti 4:8
Blessed is the man who endures temptation; for when he has been approved, he will receive the crown of life which the Lord has promised to those who love Him.
Jas 1:12
Do not fear any of those things which you are about to suffer. Indeed, the devil is about to throw some of you into prison, that you may be tested, and you will have tribulation ten days. Be faithful until death, and I will give you the crown of life.
Re 2:10
I don't know if it is a literal crown. It may be a figure of speech, like "A woman's hair is her crown." It doesn't mean that her hair is a made from a crown, or even styled to look like a crown. It's a figure of speech.
But, where'd you get the idea that everyone is absolutely equal in heaven, or in the New Jerusalem?
Now if anyone builds on this foundation with gold, silver, precious stones, wood, hay, straw, each one's work will become clear; for the Day will declare it, because it will be revealed by fire; and the fire will test each one's work, of what sort it is. If anyone's work which he has built on it endures, he will receive a reward. If anyone's work is burned, he will suffer loss; but he himself will be saved, yet so as through fire.
1 Corinthians 3:13-15