The talent trees here cover every class, but the DPS sim and BiS lists so far only exist for Barbarian (Brutality & Headhunting). I'd love help extending it. If you know a spec well and want it simmed, here's what's needed to model it accurately.
The more precise the numbers, the better the sim — tooltip values and in-game testing are ideal, but "roughly X" is a fine starting point. Screenshots of tooltips and talent trees help a lot.
To contribute: open an issue on the GitHub repo, or reach me on Discord: Leifus.