Festival contracts

I’m getting ready to do a festival as a photographer and am looking for some tips on what to include in the contract. Ive been doing a lot of research but everything says something different about who retains what usage rights. Some say the venue/festival hold usage rights and that the artists need to negotiate with them for usage rights. where as others say the artists have more control over usage rights and that the festival has to ask them permission for usage. I know I as the photographer will retain the copyright which it will state in the contract. I do know I will Include a force majeure clause as well as a clauses stating I can use the photos for my portfolio, social media, editorial use, and website use. I will not be selling prints so that’s not a worry for me rights wise. Any advice would be helpful.