In some niches i saw that profile links are working like charm. But never recommended those for long term, if you only do this you’re site may be effect in next core update update.
But there is solution for that. At starting of the of any site you might not get any links from any site. So you can create Profile links and signature links for first few weeks, when you DA increased on such seo tools. You must create some value links via guest post, forums and others.
This might help you or not. But i see a lot of Amazon affiliates sites for their ranking & making thousands of $.
I know there there are of SEO experts in here. So what you’re thoughts?