Which CMS will be best for simple site with 5-6 pages and about 30 products without buying option. Maybe in future i will install basket plugin to that CMS to give customers possibility to buy my products.
Lots of CMSes have plugin options. But for so few items, it’s also worth looking into third party carts like FoxyCart—which you can link to at any time—or even setting up the whole site in a third party service like Shopify if the site is mainly for selling things. Using a third praty provider is a lot simpler in terms of setup and security.
If you’re not having a buy/cart option then why a shopping cart add on? Why not use Wordpress’ built in Custom Content Types, which would be a much better way to store data like this, and then display as you want to?