Here is current Off page activitties.

1. Infographic Submission
2. PDF or document Sharing
3. Search Engine Submission
4. Fetch URL
5. social media optimization
6. Image Submission
7. Forums Posting
8. Video creating and Submission
9. Social Bookmarking
10. Classified Ad posting

All are now content base technique working as a seo point of view. Because Content is king in seo to get ranking and traffic from search engine. These are the content base technique given below.

1. Article submission
2. Blog creation
3. Press Release Submission

web 2.0 marketing, PDF sharing, PPT submissions is best off-page SEO techniques.

Please give me list websites can put backlink? Thanks.

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SEO là gì?

Forum posting
Guest posting
Micro Blogging
Local listings
Image backlinking
Social Bookmarking
Blog commenting
question and answer
ppt/pdf submission

off page techniques
Article posting
2. Blog posting
3. Press release
4. Blog commenting
5. Guest posting
6. Directory submission

Current SEO Off Page Activity 2016 :
Blog commenting
Article posting
Blog posting
Image/Video/Infographic submission
Classified Ad Post
Social bookmarking
Local Business listing

OFF page activities are given below:-

Social Bookmarking
Directory Submission
Article Submission
Blog Posting
Forum
Classified

No new tricks and no new offpage activities.
There are some techniques like social bookmarking, directory submission and article submission that doesn't work anymore.

There are some current off page activities are

Social bookmarking
Directory submission
Forum posting
Local business listing
Article submission
Blog commenting
Classified ad posting
Press release submission