Some advice needed

I am looking to create an RPG in the style of Fallout 1 and 2 as well as Diable 1 and 2. I am using Tiled only as a medium to create the maps and since there are not many comprehensive video tutorials online I was wondering if I could pester you folks with some questions. My first question obviously is where to start with creating a map of that type or even if tiled can support it, any answer is appreciated…

Diablo 1 & 2 used isometric projection, which is supported by Tiled. See this topic for an explanation about how to set up a map like this.

Fallout 1 & 2 used trimetric projection, which is currently not supported by Tiled. It is covered by the following issue on Github: