Social signals are legit. Take a look at a real case study from one of my websites i forgot about lol. I guess social signals are pretty powerful considering i’m ranking #1 for my keyword and top 10 for a keyword with over 3,500 searches a month. Pretty sweet.
Social signals = https://jmeist.com/go/social-signals
best backlinks = https://jmeist.com/go/sakhet-backlinks
How i make 20-30k a month with SEO = https://youtu.be/rXO1kxz4aKo