https://github.com/ken107/read-aloud
In addition to Piper voices which run locally in a browser and are quite good on their own, they also added Supertonic voices recently, which sound even better, are also running locally/synthesized in-browser and are even faster and lighter.
I’m usually too lazy to read long articles, so this extension is pretty convenient, I can just play and listen to it while I do something else.
nice but i’m searching for a Android tts-engine that replaces my google-engine but i cant find something remotly good sounding
SherpaTTS is what you are looking for. Uses the same Piper voices I think. Sherpa is what I use on my grapheneos phone google free.