Try in the sites having high DA, low spam score.
ezinearticles.com/
sooperarticles.com/
justpaste.it/
tumblr.com/
boredpanda.com/
articlesforwebsite.com/
articles.seoforums.me.uk/
articles.abilogic.com/
allthewebsites.org/

You can search from the Google with different keywods. Some good sites for the articles submissions are given below:

medium
Ezinearticles
hubpages
Sooperarticle
apsense
Articlebase
Technorati
ArticleCity
Uberant

I will recommended you to submit your article on these given below
Articlebase
sooperarticles

I would like to suggest you the best free article submission websites are
Medium, Sooperarticle, Articlebase, Uberant