Connector type suggestions required for 12V supply
Among ham radio enthusiasts, the connector to use for this would be an Anderson Powerpole connector. I don't know if it meets your needs, but you weren't very specific about them -- is it indoor, outdoor, is it for sensitive electronics or giant motors or what?

Powerpole connectors are a bit pricey, but extremely robust both mechanically and electrically. They come in pre-wired, crimpable, or panel-mount forms. They are rated for 100,000 insertions with no load, or 250 hot-plugs (according to Wikipedia.) In practice my experience is that those figures are very conservative; I have literally never experience any kind of wear or malfunction of the connector end of a Powerpole connector. (The crimp end can malfunction if not properly crimped, and it does take a bit of practice.) They are not rated to be water-resistant as far as I know, but I've used them outdoors in the rain with no issue.

See e.g. here for connectors, crimpers, panelmount connectors, various adapters, etc.: https://powerwerx.com/anderson-power-powerpole-sb-connectors

Or see here for more information: https://en.wikipedia.org/wiki/Anderson_Powerpole

The wikipedia page claims that Anderson's suggested color code is yellow for 12V, but in ham gear it is universal that a 12V connection (using the low-current 15-45 amp connectors) is red-black arranged in a specific way, so they will mate with every other ham's equipment. If you buy any of the pre-bonded or panel-mount connectors from Powerwerx (linked above) or West Mountain Radio (another ham source for power and other gear) they will be in that standard configuration; you can also use the photos of it to do your own the same way.