My suggestion is to either look for a smaller shop, or talk with the owner/manager about smaller events.
At my shop I can seat about 20, but events are rarely larger than 10. With non commander events topping at 6 most times.
A lot of players, after beating your pants off, are willing to look at your deck and offer some advice. This can help with your play, as well as introduce you to new friends.
I am a really small shop. The allocation is based upon how many people attend my events, which on a busy night is 16. And an average night is 8.
I do in a year whose most of the shops in the city do in a month.