Not as such, but there are a lot of YouTube videos where people test a series of games on a particular phone. There are some general rules though. Snapdragon always outperforms other platforms of a particular generation due to driver issues. More popular games like Mario and Zelda will run better because they get more developer attention. There are multiple forks with different goals, eg, Dolphin MMJR has much higher performance than official Dolphin at the cost of stability and accuracy.
Snapdragon 845 is the entry level where you can play maybe 50 percent of games at full speed, and a few at full speed and higher than native resolution. If you want to run at double or triple native gamecube resolution I'd recommend at least an 865.
Also keep in mind some phones like Pixels disable video out. Get an HDMI+PD adapter to keep your phone charged while outputting to a TV. If your phone's USB port is limited to USB 2.0 speeds you'll have to get a DisplayLink adapter.
Snapdragon 845 is the entry level where you can play maybe 50 percent of games at full speed, and a few at full speed and higher than native resolution. If you want to run at double or triple native gamecube resolution I'd recommend at least an 865.
Also keep in mind some phones like Pixels disable video out. Get an HDMI+PD adapter to keep your phone charged while outputting to a TV. If your phone's USB port is limited to USB 2.0 speeds you'll have to get a DisplayLink adapter.