Apart from JSTOR’s Religion collection (129 journals), we have only a couple of ejournals. This is for various reasons, but the main reason is that we cannot self-archive journals, and when an ejournal subscriptions is terminated, access to the previous issues normally cease. With print subscription we own these physical copies even beyond us ending a subscription.
If you are keen to know which journals are available electronically, please let us know. We hope to make this more obvious this summer.
For JSTOR please bear in mind that most journal titles have a so-called moving wall, i.e. access is available on JSTOR with a moving wall of 5-years for a journal, means current year minus 5 years: up to 2020!