I can't afford monthly patreon subs unfortunately but I do donate a couple dollars once a year to both Wikipedia and Archive.org because they are valuable resources to me and I could spare a bit of cash for Lospec as well. Have you considered donation drives every 6 months to a year?

It doesn't really need to come with any perks, but it would be an easier option for people with less expendable money who want the site to stay alive.