I am going to start GWAS analysis for human genome. Any recommendation which tools should I use? Also, it would be great if you could please send me a link to tutorial with mock data so I can practice first before working on the real data. 

I am new to GWAS analysis so please help me. Many thanks in advance. 
Read about [plink][1] and search for "plink tutorial GWAS". Also, related biostars post:

https://www.biostars.org/p/45440/   
https://www.biostars.org/p/249149/

There are many R packages, too:

https://www.ncbi.nlm.nih.gov/pubmed/28132152  
https://bioconductor.org/packages/release/bioc/html/GWASTools.html   
https://github.com/JoniColeman/gwas_scripts   
https://poissonisfish.wordpress.com/2017/10/09/genome-wide-association-studies-in-r/


  [1]: https://www.cog-genomics.org/plink2