2026 Recommendation for local DIY mini-split control?

There are a lot of threads a few years old about wifi-to-IR, ESPHome, and this, but most of the manufacturers listed are either not universally guaranteed, or very difficult to find in my area. Seems like Mr Cool is the only consistent option.

Since I plan on getting up to 8 of these things, and activate based on factors such as available solar, motion, and forecast, what’s the best option to commit to?