As many small airfields are not known by SimBrief but part of MSFS2020/2024 there is the need to open bATC for alternative planning. I’m using LNM for quite a while now and would suggest it as an alternative planning source. It’s FOSS and well supported. It offers a variety of maps like OSM and shows an overlay that even can be decluttered. It even can export plans to SimBrief and can reload the result or any other active plan as well.

You can already import .LNMPLN for VFR
