Setting up my GA4 for better link and conversion tracking

Hello! I'm looking for help setting up my site and GA4 account to better track conversions from internal and external links.

For background, my business is a subscription service, so i have ads running internally on my site, and also some ads running in Google and (occasionally) facebook. Here's what I'm looking to achieve:

-- Create and ensure that goals (or whatever they're now called in GA4!) for free member sign ups are working and tracking correctly, and that I can see where that new member came from / what advert they clicked etc

-- Provide me with some template UTMs that I can append to any new ads and emails I create in the future, to help make sure new content gets tracked too

-- Our premium membership/sales are administered by a Wordpress plug in called Memberful. I'd like the sales data I get from them to also be plumbed in to GA4 so I can see the full pipeline from site/ad visitor --> free member conversion --> Paid member conversion.

-- Create a dashboard / report where i can easily see key information such as top page views, member conversions etc in one place.

To clarify, GA4 is already set up and data is flowing in correctly, so I don't need any help there.

Look forward to hearing from you!