a simple solution would be to create a plugin that searches for content based on the interests that are stored against a profile (tag search). the returned items can then be presented wherever is preferred.. perhaps in a sidebar module or somewhere else. 'suggested' tabs could be created based on that type of approach too.
there are a couple of plugins that present part of that solution - though they don't use the 'interests' field of profiles as far as i recall.
i'm not sure of the name, but one of them was written by paisley / paysley

You can try the follow tags plugin and add user interests to the standard values.

Thanks for your suggestions good people. You have made my life very easier. I appreciate this. I will try out these solutions. I simply needed dynamic content recommendations to say the least. @ Gerard I have downloaded follow tags @iionly I have used groups as well. @ura soul thanks i will search for it

if (elgg_is_logged_in())
{
forward('activity');
}
?>
add this code your custom_index.php

Thanks iionly. I see that plugin works fine for me only on social login it has its limitations.

@v06 I am getting a fatal error on that. Maybe I am on the wrong thing b ut i went to index.php of the custom index plugin. I would be very interested to hear you say on that. Thank man

<?php

if (elgg_is_logged_in())
{
forward('activity');
}
?>

add this code to

theme/views/layout/custom_index.php