There are many airfoils to choose from airfoiltools.com/ with lots of good data.
I'm interested in which foil profiles are used on the commercially available foils
I'm about 90% complete building my own using Rob Rock's Instructions.
This has NACA0010 (half) for main wing and spoiler (spoiler- thrust down 2 degrees).
I've been modelling up the NACA0010 half foil section as 6409 9% not being able to find any data on NACA0010 half.
Some interesting charts of below make me think about experimenting with symmetrical NACA0010 spoiler.
Later after I try this construction out - hopefully I can make it fly!