This repository is a reference for seeds of interest that I found using cubiomes for Minecraft Java Edition.
There is a document where I discuss how to find seeds with multiple quad-huts: many_quadhuts.md.
Some tables with seeds with four or more quad-huts (1.16) are presented here.
Complete lists for double quad-huts within 20k blocks are located here and here for 1.12 and 1.16 respectively. Note that the south-west quad-hut is barely in reach of the AFK spot in each of those seeds and will require specialised farm designs to utilize fully. Also up to 1.13 (inclusive) some of the quad-huts are unsuitable for farms because of MC-73051.