That's exactly what the new Advance (Episerver product) will do. Not sure if they have documentation on it yet though. 

If you dont have Advance yet, you may have to take the manual approach. You can use categories and ask content editors to tag all blogs and then use the API to surface similar blogs ordered by date. The other option is to add a IList<ContentReference> property to each blog and ask content authors to manually assign some related blogs for each blog. 

@Aniket, thanks again for reaching out. I am acutally tagging the blogs already, by default I am filtering the articles based on the category and then ordering them by date. Was looking for any other way to approach the suggestions piece as getting the latest would be redundant in my case.

The other option you can try is More/Like search functionality. You can pass it the blog content to retrieve similar blogs. Something like this:

var firstBlogPost = //Some indexed blog post about guitars
var secondBlogPost = //Another blog post about guitars

searchResult = client.Search<BlogPost>()
    .MoreLike(firstBlogPost.Content)
    .Filter(x => !x.Id.Match(firstBlogPost.Id))
    .GetResult();

More information here:

https://world.episerver.com/documentation/Items/Developers-Guide/EPiServer-Find/11/DotNET-Client-API/Searching/More-LikeRelated/

Thanks Aniket, this approach should be good for me.

If you have Find then MoreLike is a great option yes. Using categories is also a great option for the simple cases.

For the future the Advance functionality that is based on machine learning will be really cool way to pick related content that matches the current user.