What is the best option for obtaining a 60-day tourist visa to Thailand from Nepal before arriving in Bangkok?

A user currently in Nepal is inquiring about the best option for obtaining a 60-day tourist visa to Thailand, as their application takes about 2 weeks, while they have a flight to Bangkok tomorrow. Comments suggest that Laos (specifically Vientiane and Savannakhet) is usually an easy option, but there are warnings about possible rejection if already having multiple tourist visas this year. Additionally, Penang is mentioned as a walk-in option, although it has become less applicant-friendly due to tightening rules.