laravel 5.6 with angular 6 integration

I have used myself Laravel with Angular v2+, the way I did was to make two separate projects, one which creates the API's (The Laravel app) and one which consumes the API's (Angular v6 app). That is how it is meant to work and that is how you should approach it.If you want to integrate the front with the back end, and still have a powerful SPA, then you can go with VueJS, there are vast resources when it comes to the Laravel Vue combination.

another thing to consider is what is this project about?

is it a client website? or just a web app? does it require SEO? beware.make sure you fully understand (angular) universal and it's current limitations/problems.

UPDATE: I am currently using Angular 6 with with Server side rendering(universal) and a Laravel API as a Backend solution for a complex & highly ranked website in the UK.

You have API routes available which doesn't look for CSRF tokens. Use any JWT package for web token authentication implementation. Host your Angular app separately and send request to API routes.

Your Angular apps are standalone applications. They don't need Laravel for running on server. You just need to use API routes for working with data.