If we were to agree to keep an electoral college, but with reforms...

[7,052,770]

I just calculated a result from 2016 that is proportional, but with the caveat that you can't round up to 1 electoral vote in a state, and only whole numbers of electoral votes is allowed.

268   Hillary Clinton
265   Donald Trump
3      Gary Johnson (2 CA, 1 TX)
1      Jill Stein (CA)
1      Evan McMullin (UT)

I still strongly prefer the popular vote, and I think we might want to multiply state totals by 10, but this is at least an improvement over the current electoral college since it's likely going to more resemble a national popular vote in total.

[7,052,770]

How about every state has a top-two runoff if no one hits 50 in it? If a candidate gets 50% of the vote, they automatically get all the electors, if not, they hold a runoff election the first week of December in that state. States that voted 50%+ for a candidate just don't vote again during the second round. Runoffs are skipped if one candidate secures 270+ in the first round.

EDIT: In 2016, that would've produced this:

Trump 198
Clinton 183
To Be Determined in Runoff 157

Does anyone want a whole nother month of campaigning? Do the runoff the next week.