If you're still in a position to be able to get out and exercise and looking to prevent your navigation skills from atrophying over the coming weeks and months then, if there's one local to you, why not run, or re-run, one of SOC's back catalogue of MapRun courses? We've added a list on the website at https://socweb.org/maprun, with the PDF map for each course available to download. If you have the mobile app then it will notify you when you're in the right place for each control and will upload your route and time for comparison with others.
If you have any questions, or would be interested in create a new course (linear or score) in your own area, then drop me an webmaster [at] socweb.org (email).
Also, remember that the club has a number of permanent courses available. In particular, I'd highlight that, if you live near Lakeside Country Park (Eastleigh), the map is available for download from British Orienteering for free so there's no requirement for human contact!