I do plein aire. Whts a French easel?
I made my own to stand up paint level as I sit on the open tailgate of my pickemup truck. I had an awning made that fits on the end of the truck cap so I can paint in bad weather.
I do most of my paintings watercolors and a 1/4 are pastels. I only do a little bit of oils.I keep a lot of brushes in a meatl desk cage with a big wood block nailed to the bottom so they don't dump over.
My oil brushes are all flats of various widths , a rigger, and a good sable watercolor brush for mixing a runny-ish white (I pint oils -from dark to light and I add white last, if I use it at all)
I do keep one really good 2" hog bristl for huge layouts of tone and I also keep a skewed end knife.
Where you painting? I paint in the Appalachians mostly