Neither of these are what you are asking about but I'm recommending them because I use them both. Also, it's a cheaper option (usually) than new controllers.

https://www.amazon.com/dp/B07TDLRFKK/ref=cm_sw_r_cp_apa_glt_fabc_VF89726F577KE14QPYN4

This is for the regular switch. While not super ergonomic, it's dock-able which is a huge benefit, and still feels better than just holding the switch without it.

https://www.amazon.com/dp/B08DVCCWXH/ref=cm_sw_r_cp_apa_glt_fabc_3FRKRST8DG8SQPNDVFC1

This is for the switch lite, it's super ergonomic and I enjoy using it much more than the regular switch.