What is the best outcome here?

Lets stop and think about it, what is the best possible outcome to the eventual impeachment of Trump? Here are some possibilities, let me know what you think:
- Would it be better if he were removed from office and the eventual Democratic nominee runs against Pence?
- Trump gets impeached but is not convicted in the senate. Then the Dems run against a disgraced/impeached Trump and a Senate seen as corrupt for enabling him?
- Trump resigns, Pence selects Kevin McCarthy as vice president. Reps run on Pence/McCarthy ticket or Pence also gets removed and McCarthy is Rep candidate.
- Reps primary Trump and Pence.
- Trump and Pence get removed from office and reps run entirely new ticket?
- Trump gets tried in the senate, throws Pence under the bus, both are removed and Nancy Pelosi is president (Yes least chance of this) Does she run in 2020?

I actually think scenario 2 is the most likely and probably the best outcome for the Dems in the 2020 election. What are your thoughts?