I don't think senators should be by state, I think senators should hold office for 5 years and every year the entire country should elect 20 senators.
Other things we should do:
Abolish political parties.
Uncap the house, algorithmically determine representative districts with something like the shortest split-line method, and assign between 3 and 5 representatives per district.
Break the powers of the president into multiple different offices.
Make the leaders of the house and senate elected offices.
I think the Senate would be fine if it was in charge of a Veto instead of having to also pass the legislation, also if it had a lot more senators to some multiple of 3 at a minimum.
IE doing nothing is just letting everything pass automatically and that cooling pan shit is something senate leaders have to pursue actively with (qualified) majority support.
My ideal procedure. House passes a law, Senate vetoes it with a majority meeting or beating the passing margin of the law in the house, but also representing a majority of all americans, house can override the veto by meeting or beating the population margin the senate's Veto represented.
You may note that there is no president involved in this process. That is because I believe the independent executive is an inherent threat to democracy and that it should be subject to complete erasure and power division to save the republic.