There is an overwhelming amount of advice for beginners looking for their first telescope. Here are a few good videos to cut through the noise.
'Astrobackyard' advises which telescopes work best for different observing options
'Alien Tech' clearly and simply explains how each different type of telescope works
'Astronomy Network' describes telescope features, AZ vs EQ mounts and eyepieces
The Atlanta Astronomy Club has some specific recommendations for getting started with amateur astronomy and buying a telescope.
Here is some additional curated YouTube content that offers practical, clear and straightforward advice.
3 tips, and 5 red flags, from astronomer John A. Read
Excellent telescope suggestions from astronomer John A. Read
Planetary observing must-haves in a telescope
5 stargazing apps used by astronomer John A. Read
If you would like to learn more about telescope details, here is a handout that the AAC produced and has used for many years: