As far as I understand, there are now many such systems and software which, if they are integrated into the business in a quality manner, allow me to optimize its management. I probably need to find some specialists?

Obviously, yes. I'm sure there are various partners and specialists who can help with the integration of such solutions to run a business.

A lot again depends on which ERP system you decide to work with, as there are quite a lot of options and tools out there. One of them can definitely be considered IFS Cloud, of which Novacura is a partner https://www.novacura.com/ifs-services-implementation/. By adding Novacura Flow to your IFS system, you can access a wide range of features and technologies, including the ability to create your own ERP apps using a simple editor.