Going top 20 is easier but maintaining them for the mean time is a challenge. Look at chainlink for example, I wonder when bottom will be in.
Hy mate, could you explain how you make that rectangular box on your image, I will be glad for your swift response. Anyone with idea can help out.
But staying on top 20 nor 10 doesn't mean the coin/token is good, it just
tradable. Half of top 10 coin is just scam or poor development, so choose carefully.
I think it's easy to make rectangular box because most of software or application offering this very basic features, often I make it trough paint. Next time use google search.

He just inserted OPs image link in the BB code format so it shows the image insode the quote and seems like a rectangular box.
True, actually OP already insert BB code format but since he's still newbie he can't attach the images... I just quote it to make the image visible.