The best guest posting trick I can share with you for high DA sites is very tricky indeed.
You don’t even look for “Write For Us” or other keywords that indicate that these high DA sites are taking guest posts.
Instead, contact the person behind the website and ask to interview them.
Focus on controversial topics in your niche, come up with an interview template, and be as professional as you can.
Tell them that you'll share their stuff on your social media accounts, in addition to posting them on your blog.
What do you think happens next?
Not only will they mention the link of the interview on their social media accounts, but there's a high chance that they might actually link to you from their high DA site.
The best part?
You establish credibility in your niche.
You're not going to be some random stranger asking for a guest post.
Instead, people will see that, since you interviewed “so and so” who's a big deal in your niche, lesser players or newbies would want to be interviewed by you as well.
It’s as if the credibility of the big guys rubbed off on you, so you can get even more interviews.
If you play your cards right, you will be able to rack up a tremendous amount of high authority backlinks in a short period of time.