hi i already asked that in the discord a long time ago but it would be good hear me out!
so the game could be about buying competitors locations or shops when they are low on money or bankrupt,
since you want to add multiplayer then make big public towns (servers) where people could connect and buil or buy premade restaurants, then when a player leave in abandon his restaurant or just go bankrupt his location is put for bids or for sale with the show still in the restaurant then by example me buy, one of those locations and i have a
modern looking show about a singer and a pianist girl and they had a show about 2 bears , i convert the show like i do a concept unifications of my characters on the show they had so it looks like mine.