I have interest in B2B more than B2C occasionally but don't really have a lot of domain knowledge. Would you happen to know a few general tricks how or where to get such knowledge?
in my case, my father and family friend approached me and asked if i could build something. our co-founder said "all the software in this (hr technology) industry sucked". can i build xyz? over a long period of time, i did.
so my general trick would be - find people who are in completely opposite industries as you are right now. doing totally different, non-technical work. often times they're consultants that are reselling other companies products. and they know - since they've been implementing products and speaking to customers on a daily basis - where the customer pain points are.
hope that helps. it only happened for me once, so it's hard to replicate, but i hope you get the chance.