Magento is materially heavier than a brochure CMS. This page lists providers that declare Magento support, but a store should be sized from its catalogue, extensions, import jobs and checkout traffic. Verify PHP support, database limits, cache options, scheduled tasks and the upgrade workflow before treating an entry plan as production-ready.
Shared hosting can be useful for a demo or a very small catalogue, but it is rarely the comfortable long-term choice for a busy Magento store. A VPS with enough RAM for PHP workers, database cache and search services gives more predictable headroom. Start with KVM VPS or Linux VPS when the store needs control over its stack.
Straight answers about ranking methodology, pricing and choosing the right plan.
A demo or very small store can, if the host supports the required PHP and cron jobs. Busy catalogues, imports and extensions usually need a VPS with more predictable memory and process limits.
There is no universal number because the catalogue and extensions matter. Plan capacity for PHP workers, database cache and search, then test under real traffic instead of selecting by the lowest entry price.