Marmo had explored more than a few local spaces as possible homes — the Royal George is closed — for his show before settling on the Venus and its 90-some seats. It’s a handsome place, recently refashioned as, what its owners call, “an intimate theatrical performance space where you’ll find something for everyone.” That “something” includes, in addition to Marmo-as-Lenny, other forms of entertainment, from stand-up comics to variety shows, from karaoke nights to the sublime singer/composer Joanie Pallatto, premiering her new CD, “My Original Plan,” at 6:30 p.m. Dec. 5.