I have two Oregon Scientific radios, WR196T from the early 2000s and a more recent WR608. They are basic radios that can be purchased used on ebay for $20 or so shipped.
Both offer 4 NOAA settings:
radio on fulltime
radio on standby but will siren and then talk until the EOM on alerts
radio mute -- no siren tone will sound but a text message (just says TORNADO or whatever) will be displayed
radio off -- no alerts or msgs will be received
The WR196T has a skinny LED bar that flashes green but changes to red when an alert is issued.
The WR608 has a rather bright and big LED that blinks bright green and then I presume switches to red for an alert (haven't had the WR608 long enough to know.) I put a piece of black tape over most of it because the light is too bright for a bedroom at night, imo. I like having an indicator light.
Neither offers ability to delete or modify individual alert types. You can only include or delete an entire S.A.M.E. code.
I tried a Midland 120EZ and now a used WR-300 version 5. The LEDS would not light for anything other than the weekly test on the Midland 120EZ, and I returned it thinking it was defective. But so far, I have seen the same thing happen on the WR-300. The green/red change always happens on the Oregon Scientifics, so I'm not sure what's going on with the Midlands. Of them all, I still like the WR196T the best. It's very fast-reacting and reliable.
I live in a very large Victorian house with bedrooms spread out. That is why so many NOAA radios, haha.