Seeking recommendations — Best apps for landing pages?

[RolandP]

Hello,

I’d like to create some ads that point to content-specific landing pages, not my general Shopify store.

I have looked at MailerLite and Omnisend as possible tools to create those landing pages that can automatically put the name, phone numbers and emails I collect into my Shopify customer or prospect list. Both of these seem to have very limited landing page possibilities.

More robust landing page resources like Leadpages or Instapage don’t appear in the Shopify App Library. 

Can anyone recommend landing page resources they like that offer a better-than-minimal landing page design options and that integrate or play well with Shopify?

Thank you in advance for your recommendations.

Roland