Which is the best Responsive theme for Wordpress Seocheckout Affiliate Store?

Which is the best Responsive theme for Wordpress Seocheckout Affiliate Store?

Hello guys,
I am planning to create a Seocheckout Affiliate Store on wordpress. But I am a bit confused to select the best responsive wordpress theme.
I will use a Seocheckout affiliate wordpress plugins. I can't take decision about best theme for this plugins, also it should be suitable for Seocheckout affiliate wordpress plugins.
I am waiting to get help for it from you guys.

Thanks
Regards
Gigmom