What other revenue earning avenue can go best along with Goggle Adsense

I have a blog monetized with Google adsense. On each post I have three google adsense ads within the contents. I am looking into the options of having one more avenue to earn from on this blog which can go best along with google adsense ads. Can the experienced ones suggest what would be best to go into along with google adsense.
Best Regards……………..

See original post by Renu Kumar Bakshi