Recommendation for Suttas I have been practising Vipassana for quite a while (2 and half years). Now, I want to also dwell into the teachings of Buddha as presented in Suttas and apply those teaching in my everday life. I have read a bit about Majjhima Nikaya and Samyutta Nikaya but bit I'm in dilemma and not sure whether other Nikayas are suitable for a beginner or not.
With which Sutta (Nikaya) should I start with?
Well DN and Mn are long copies of suttas from AN and SN. The problem with AN and SN is their size.

Since people today say that the suttanipata [=Snp] chapter 4 and 5 are the oldest texts, and that They are read in a few hours tops, you can start here:

http://ftp.budaedu.org/ebooks/pdf/EN391.pdf

https://www.accesstoinsight.org/tipitaka/kn/snp/index.html

So the order would be about starting with short texts and collections, then the big collections, then go back to DN for a summary: sutta nipata chapter 4, 5, then 1, 2, 3, then MN, people like the dhammapada too so why not,  Then SN and AN in no order, Then DN,  then all the little added stuff in KN. Of course, there is the vinaya and the abidhamma too....

Here is a picture of all the catalog



The famous Bikkhu Sujato has written a few guides about all those Nikayas

A Reader’s Introduction to the Pali Nikāyas 
https://discourse.suttacentral.net/t/a-reader-s-introduction-to-the-pali-nikayas/11507

more guides here https://discourse.suttacentral.net/c/reading-guides

Instead of reading, There are also records of MN, AN, Snp, KN, SN, DN
https://bodhimonastery.org/online-dharma-lectures

https://www.youtube.com/user/venbodhi/videos

http://www.suttavinaya.com/list-of-topics/

https://www.youtube.com/user/vbgnet98/videos

It will take a while to read or hear all that, especially if you do not spend the whole day doing that, so it is even better to begin with the short texts.