All the necessary parameters are not obvious by your pictures or description.
***What is obvious:***
Snap in, SPDT, 16A @ 125V, quick connect 0.250 terminals
***What is not obvious, and important:***
Panel cutout dimensions
If the sw has a center off position
If it is lighted.
[link|https://www.digikey.com/en/products/filter/rocker-switches/carling-technologies/195?gad_source=1&gclid=CjwKCAiAmrS7BhBJEiwAei59i7wUB-FrcVHPlGiNRhVtOPcV11IdUNUhmDD-A7sL-MBh02DDFTHD8hoCcGIQAvD_BwE&gclsrc=aw.ds&s=N4IgjCBcoGw1oDGUBmBDANgZwKYBoQB7KAbXAAYB2GAVggF0CAHAFyhAGUWAnASwDsA5iAC%2BBGAE4EIZJHTZ8RUiADMADhWVKNEIxCt2XPkNEEwK8tNnzcBYpDIAWcjQkxKu5m0iceA4WIgAEwqOtAyqJi2Sg6qakHkMEGe%2Bt6%2BxgEEQTRqVpEKdsoqEmCObikGPkb%2BpsGlKnlyUYr2ZGDZAAQAahVpAKr8vCwA8igAsjhoWACu3Di1ALQQ4dbNBABu-FA80y3KjirJepXpNSLnQA&utm_adgroup=General&utm_campaign=PMax%20Shopping_Product_Zombie%20SKUs&utm_content=General&utm_id=go_cmp-17815035045_adg-_ad-__dev-c_ext-_prd-_sig-CjwKCAiAmrS7BhBJEiwAei59i7wUB-FrcVHPlGiNRhVtOPcV11IdUNUhmDD-A7sL-MBh02DDFTHD8hoCcGIQAvD_BwE&utm_medium=cpc&utm_source=google&utm_term=|THIS] page has all of what I perceive to be a snap in, SPDT, 16A, 125V, with quick connect 0.25 terminals. You can change the filters to see other switches. All of these require a rectangular - 28.58mm x 13.97mm cutout.
You might also search [link|https://www.aliexpress.us/w/wholesale-spdt-snapin-16A-rocker-switch.html?spm=a2g0o.productlist.search.0|AliEpress] to find a match.
NOTE: most of the switches with quick connect spade lugs that burn like that are caused by loose spade lugs. That heats up the sw terminal and melts the plastic. Make sure they are tight by squeezing the wire terminal with pliers, Gently. You don't want them impossible to put on.