Avoid a penalty from Google. The biggest mistakes that people make if the keyword is HVAC repair Los Angeles, the H1 in a spammy page will say HVAC repair Los Angeles. Should actually say HVAC repair in Los Angeles.
HVAC repair Los Angeles is a fragment. You don't want to do fragments. It's seen as spammy.
Searchers don't like it. Google doesn't like it.
Then if you're targeting keywords that are very similar, make the pages different for the keywords. You wanna show how your product or service serves this specific keyword instead of just the group of keywords in general.
For the rest, check out the full video on YouTube.