A question about reapportionment.

[Massacure]

I just had a thought about reapportionment and gerrymandering House districts. I don't see anything in the Constitution requiring states to define districts, so I'm curious if a small state could elect representatives statewide just like senators. It would be too unwieldy for a state like California, but I could see it being feasible in a small state such as Connecticut which has five representatives. The population is 3.5 million, so anybody who collects signatures of say 2% of the population (70,000 signatures) appears on the ballet, and then the five people with the most votes win. It would do away with gerrymandering.