In order to rank well, you need good content. This is the first thing. If you do not have good content, no one would link to you. You might still be able to get some shady links but it won’t work as Google measures how long visitors stay on your website, in order to gauge the quality of your backlinks.
With that said, here are a few good clean white hat techniques to build clean white hat backlinks to your website.
Link Pyramid
Link pyramids are the effective link building strategy that involves building backlinks and then sending backlinks to those backlinks. … The backlink pyramid was one of the first backlinking strategies that are to be developed ever since Google began placing value on backlinks.
Link Roundup
Simply put, these are weekly, daily, or monthly curated lists of the best content in a particular industry. The reason why this is a dream for anyone building links is because the sole purpose of these pages it to link out to other websites. This means those sites are more than willing to share links. More details
Some of these may no longer work.