Is it better to get a Laos EVisa or a visa on arrival at the Nongkhai border?

Yes easy to get visa at boarder. I think is was 1600 baht or something similar. Don't change more money then you need at the boarder as banks offer much better rates

Say where you're from. Quite a few passport holders get 30 days visa exempt = "NO VISA".

Never had a problem with visa on arrival but I imagine it depends on your country of origin.

If from Bkk. Take the Nakon Chai Air VIP night bus and arrive Nong Khai in the morning.

Go have coffee and breakfast and use ATM if needing Thai money. Depending on the day and date of the month, the border crossing can be done in 30 minutes.

Take taxi or bus on right side of Lao border. I recommend a hotel near the Embassy if you are just visiting , if you have time , downtown riverfront is good fun and has many bars and restaurants.

Remember to book a time at the Embassy

Recommend evisa , else you get asked for gifts or different prices , evisa is very efficient .

Nong khai is ok