I don’t think pepper spray is necessarily a good idea.
If one or more people are coming toward you and refuse your commands to stop or back off and there is no option for you to get away from or de-escalate the situation, you should probably be in fear for your life.
An aggressor can cover 21’ in one second. The last thing (if I am in fear for my life with NO options for escape) I want to do is pull out a can of pepper spray/mace and hope it stops the attack. You have NO time for a second
option. You have only one chance to save your life. Ergo, the gun should
be out and ready to shoot if that’s the only option. Period!! JMO

Be SAFE and Shoot Often!