Hello Copywriters I Need Your Help!

I'm having trouble deciding on which topic to use for my blog. Which one should I pick in these six available options below?

1) Top 7 Barriers That Prevents Customers From Buying and How to Fix Them

2) 7 Reasons Why Customers Are Not Buying From You and How to Fix Them

3) 7 Common Mistakes People Make in Online Marketing and How to Fix Them

4) Insane Marketing Tips: Top 7 Online Marketing Mistakes To Avoid in 2021

5) Online Marketing Made Simple: 7 Mistakes to Avoid As a Newbie Marketer

6) Top 7 Online Marketing Mistakes You Must Avoid | Business Tips

Please choose carefully , which one should I use?

2.

osiwojr:
2.

tnx a lot

2

4 would be nice

Please, I need someone who is good at proposal writing. Please I need to write one.