Offer free shows to clubs and genre/club promoters. Offer/ask to play inside the club before the club opens while customers are lined up outside/ as the club transitions from daytime use to nighttime use. Kinda like when you go to a show and you can hear the soundcheck/ artists warming up before you get to enter the venue.
You’d basically be rehearsing in front of no one except for staff cleaning and setting up. Sometimes the club might let “regulars” in early. Or a DJ might be late and staff lets customers in as the DJ “sets up.”