Of course if you’re a DIY type, check out this midi foot controller: Pedalino https://github.com/alf45tar/PedalinoMini and here: https://www.youtube.com/watch?v=pCNSvJ9QiDs&feature=youtu.be
I’m in the middle of building one of my own. Just waiting for my TRS sockets to arrive so I can put everything into a case and plug it into my Zynthian! Then I’d like to DIY some pedals. I’ll keep you posted on my progress.