The U.S. Gun Violence Archive says 147 mass shootings have occurred so far in 2021.
This is just MASS shootings (at least four victims).
Here are the stats for APRIL this year (so far)
Number of Deaths in 2021 | Gun Violence Archive

What's the answer?
Obviously getting guns out of the hands of redneck hillbilly Trump supporters is a start but where do we start with that.
They believe it's their 'right' to 'bear arms'.
Well ok.
A single shot long gun (rifle. I mean you have to physically cock the rifle for each round) with a 5 shot max magazine.
There you go. That's you arms.
No auto or semi auto rifles. No handguns AT ALL.
Even if you want a 5 shot magazine single shot then you have to pass a test and be licensed to own a gun and the gun has to always be registered to an owner. (if you sell it without transferring to the registration to the new owner you are responsible for whatever happens with that rifle)
A practical impossibility I know, but seriously, looking at the stat's SOMETHING has to be done.