The Quick Settings toggles are the simplest option.
F-Droid
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
Matrix space | forum | IRC
Macrodroid, Automate, Tasker.
But why turn them off?
Battery life and privacy
And security
Really has virtually no battery life impact (this from 15 years of testing many phones and configurations). Perhaps 1% in 24 hours, I'd have to look at my stats.
May have a slight privacy impact, but given the overall data collection out there, probably unmeasurable. That said, I do turn mine off a lot for the same reason, I just don't believe it really makes a difference
Tracking can and is done with both by 3rd parties.
Not the best link, but Schiphol airport as a public example.
Bluetooth and WiFi have an auto off feature. It's at least built into GrapheneOS, not sure about other variants
i use the GOS bluetooth autooff timer all the time, its great, increases battery life too
This post just reminded me to turn off my Bluetooth. I hope someone is able to provide an answer