We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
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There is no alternatives to SharePoint, just wannabe's....
Maybe try this questions on a non-SharePoint forum.
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
http://www.athento.com/en/alfresco-enterprise-platform/
There are others as well, like Huddle (https://www.huddle.com/product/collaboration/sharepoint-alternative/?SSAID=389818 ), Google drive or SamePage (https://www.samepage.io/sharepoint-alternative)