How to use Data coming from Fb Leads Form Ads ?

I am running an ad which is a simple leads ad on facebook which asks information of client. There is no landing page right now. So how can i use data for remarketing or can target more clients through that form.

Also need few tips on which kind of landing page should i add in form.

Niche: Cyber Security Products

Look what kind of landing pages your competitors are using. And if you have got the emails of your clients, you can use them later wjew you have a landing page.