What map setting most likely lets you spawn on a 5 city sized island (or even using mods too)?

Ever since I've started playyng this game, I've wanted to start a game as a sort of britain situation: spawn on an island that can hold 3/4/5/6 cities in a relatively normal map, then when sea travel is unlocked meet everyone else and expand rapidly in war and colonization.

Problem is, map generation doesn't like that. the game rarely spawns you on an island in the first place, and basically only does it if you do some highjinks where only islands spawn, and that doesn't even account for that you are 12 tiles from some other player. Honestly always being close to a player wouldn't be a problem if I could spawn alone on a mid size island in a map not full of islands.

For obvious reasons I always try generating larger map sizes.

I've tried out the mod got lakes, and it's definetely useful, but kinda hard to use, so if anyone has messed around with map mods and cam help I'm all ears.