Where can I walk up to get my pfizer jab +100?

Went to NRG today and got turned down. Had no way to schedule an appointment since I no longer have phone service (this 100 is gonna help for sure.) Where can I get a walk up jab of pfizer + the $100 near the Acres homes area?

Edit : Well s**t. Downvote me I guess?

Edit 2 : I give up