First bike as a complete beginner, where do I start?

I really want to get into biking, but I’ve never actually ridden a bike before.

I’ve tried a scooty recently and can manage it pretty comfortably on internal roads when there isn’t any traffic. Now I’m looking to get my first bike, but I’m not confident enough to take a test ride yet, so I’m a bit stuck on how to go ahead to build confidence.

A few bikes I’ve shortlisted are the Ronin, Xpulse 210 and RTX 300.

What would you suggest for me to do in my situation? How should I proceed getting comfortable with riding before finalising my first bike?

Also, if anyone here is based around HSR, I’d love to connect. Would really appreciate some advice on learning and choosing my first bike.

Thanks in advance! :)