Repairs, delivery, garages, cleaning — services where the customer has to be from the same district and the decision takes an hour.
Where to look
Building and estate chats, neighbourhood groups, city classifieds, owner groups for specific car brands. The list is short and the audience is local by definition.
Speed decides everything
«Who can fix this today» closes within the hour. An answer the next day helps nobody. That makes an automated first reply worth more here than anywhere: it arrives in time.
Reputation inside the community
The district is small and there is one chat. You will be remembered — for good and for bad. One job done well brings recommendations in the same chat; one pushy message closes the venue permanently.
The ceiling
The audience is capped by geography and does not grow with the number of accounts. Hitting the ceiling is normal; growth beyond it means neighbouring districts or a wider service range.
What to write
Specifics: what you do, roughly what it costs, when you can come. Vague answers and «let us take this to DMs» perform worse than a direct reply — practical questions want definite answers.
What not to do is mass-message the residents of one building: the fastest route to a spammer's reputation somewhere you cannot leave. Collecting chats by geography is on the parser page.