I need anonymous linktree landing page for my SM mass accounts

I run many accounts and use a few .com domains as landing pages.
From there people can click through to get to my main site.

Problem is they are all on the same webhoster and wanna cut the connection completely.
I want to have these landing pages as anonymous as possible, its basically like a linktree site but with Wordpress and looks better (with customer reviews etc)

What can I do?

I have no problem in getting rid of the current landing page domains and replace them with new ones.
Maybe new anonymous domains registration + offshore hosting? (which?)

Maybe just another solution, I need a ‘‘click through’’ website only. One site.

Any advice?