Hey, with the way things are going, I might be having an intimate wedding too. But in your case, I suggest looking into restaurants. Even if you can't buy one out, lots of places have private dining rooms. And you can probably book one the month or two before without tying your money into deposits. Good luck finding a spot!
At least you're not locked in to any contracts should covid for you to pivot. How many are you planning for? Do you have a few leads or are you starting from scratch?