Rider is free for Open Source projects: https://www.jetbrains.com/community/opensource/#support which should cover your personal projects.
Might also be worth asking around if your office have any JetBrains licenses. It’s pretty common to have one covering the .NET suite for dotTrace etc
I have nothing against well made paid software but I am not going to use a subscription model to pay for it. I am not looking for software that is looking to rent seek from me every month.
So you’d be OK paying a one time fee in order to own that version forever?
Because that’s literally how JetBrains works:
12 months of uninterrupted subscription payments qualify you for receiving a perpetual fallback license.
https://sales.jetbrains.com/hc/en-gb/articles/207240845-What-is-perpetual-fallback-license-
(I promise I’m not a sales rep)