Related: What WordPress plugins do I need?
In the above post I write about plugins that fall in the following categories:
- Site Migration
You only need 1 plugin from each category, with the exception of Utility.
You may find your theme comes with a content editor like WP Bakery built into the theme, which you should keep should you wish to continue using the theme.
E-Commerce plugins like WooCommerce often require extensions, which are installed as WordPress plugins also.
So, all up, you should aim for no more than around 15 plugins per WordPress website.