I am looking for suggestions on smart switches which are -

1. Dimmable
2. Single pole and 3 way (some are 3 way n some are single pole)
3. Standard size (so that can fit 4 of these switches in an existing 4 gang box)
4. Reasonable cost ~$15-$20 (Need about 20 switches)
5. Can be setup in both Alexa and Google Home

I have been seaching amazon and haven’t been able to find any smart switch which checks all the boxes.

I am planning to replace all my light switches in my new home. Ultimatly i am going to have all these smart switches on a custom home automation panel on wall using an Android tablet.

Any help and suggestions is appreciated and please bear in mind this is my first post on reddit.

Thanks