Making academic journals more accessible is a problem that I’ve been working on the last few years with my project, Scholastica. We provide software that allows journals to manage their entire toolchain from peer-review to publication.
Homepage
Two journals that use our software: https://www.surveypractice.org (OA journal published by American Association for Public Opinion Research)
https://discreteanalysisjournal.com (arxiv overlay journal started by Fields Medal winner Tim Gowers)