Best Way to Quickly Validate?

Background: So I'm a long time founder of no successful startups. I made the mistake of putting in months of time before getting a product in front of any users. After talking to investors/growth partners, I've learned the best way is first to validate an idea with the market (via Paid X & FB Ads, Reddit/HN posts, etc.)

Question: What is the best way to quickly validate an idea with a decently targeted campaign? By that I mean getting ~1000 impressions (is it possible for a $50 usd budet?)

Products: All are just landing page + feature list + hint of branding + a waitlist form to collect market data. Here they are:

https://founderos.lol - Aggresive AI Coach for Founders to help them stay on track & accountable)

https://content-manger-ai.pages.dev/ - AI Content Advisor & Planner for small business

https://launchsprint.lol - Turn one idea into 10 variations with different feature lists -> landing pages with a waitlist form (ie all these 3 links)

Problem: X Ads account got suspended and I don't want to create an X account for every single idea & pay for premium

I have many ideas I want to validate that I would be happy to work on. If any of these pop out to you, feel free to reach out!

TLDR: What is the best way to validate an LP to get 1000 targeted impressions on $50 budget?