>>106284882
If you want to reduce RSI switches are not going to do much, but there is a few things you can consider that might helpm just keep in mind however budget will be the be all end all. Cheapest solution is to get an Alice layout clone from Keychron or Aliexpress with Alie being the cheapest of the two and put in some speed linears of your choice. I have heard good things about raptors and the raptors extreme speed linears but no hands on experience so you will need to do your research. Also consider Cherry speed silver clones as they are not too expensive. As for keycaps you can either get low profiles to reduce the height of your wrist placement or get high profiles like SA to reduce the actuation time on the switches further with the increased leverage.

If that's not enough for you there is Maltron who do speciality RSI and disability keyboards with Cherry black linears. They come in single left hand / right hand configurations so you can type with just one hand or you can get their dual hand keyboards which is more conventional. You can get them second hand below 200 or 100 easy on sites like Ebay here and there (I bought all three of the variants over the years using Ebay).

If you want more custom there are Dactyls which are 3D printed ergonomic keyboards inspired by brands like Maltron. They are as good as you can get for ergonomics without getting into luxury keyboards and you will be easily looking at 200+ depending on the seller making them.

Then there is the Svalboard which is peak ergonomics at the cost of around 1000 dollars. It is literally a hand keyboard and out of Sci-Fi and is based on the Datahand in pic rel. The latter will cost you 2500 dollars and is possibly the most expensive keyboard you will find on the second hand market, beating IBM Beamsprings and F107s.