The best type of link SEO is through Guest Posting [and or Guest Blogging].
On the other hand, maintain focus on creating valuable and high-quality content that satisfies user intent, that has a strong chance of generating natural quality backlinks.
Here's related information that you may find helpful - 29 Key Findings Data from the State of Link Building 2022 Report that might help to strengthen your SEO skills and marketing decisions.
P.S:
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