mindless

Well.....
fingers crossed for most of these:

Not exactly a BOM, but this is an ongoing 100 day quilt along project that is almost over for 2020. I'm watching for the new one for 2021 to be announced. You can do this in a modern or improv or traditional way. Lots of online quilting blogs participate. Here are some:

http://gemini-stitches.blogspot.com/...ler-quilt.html
https://www.elmstreetquilts.com/2017...-100-days.html
http://www.blossomheartquilts.com/20...ocks-finished/
https://www.sarahgoerquilts.com/2020...week-1-update/

This is an improv quilting project from 2020...I'm watching for a new project for 2021:
https://www.sarahgoerquilts.com/2020...in-mini-quilt/

here is another I'm watching/waiting for:
https://www.simplesimonandco.com/201...domestic.html/
https://www.youtube.com/c/sewmodernquilts

Also not exactly a BOM, but this is a modern quilt block series:
https://sewmodernquilts.com/category...-block-series/

Amy does a lot of modern and improv quilt along projects. She also does the quilt block series:
https://www.amyscreativeside.com/202...-block-series/

these are youtube videos of the modern quilt block series:
https://www.youtube.com/results?sear...+modern+quilts




these are not free, and maybe? not modern?
https://www.fabricgardenquiltshop.com/classes

also not free, but new for 2021:
https://www.youtube.com/watch?v=bDZ5ai0ps-Y




also, new for 2021 - but not necessarily modern:
https://jacquelynnesteves.com/my-hometown-bom/

I'll keep looking.....