Look up Addie Systems. A no frill softener sold through Farm and Fleet - if you have those where you are. If not, they may ship one to you.
I replaced a Culligan with an Addie and it is excellent. $400. Good components. Christian company. We are very pleased.
Don’t fall for the big box brands or magnets or RO or some other malarkey.
If this’poster said it’s a good brand and farm and fleet carries it, get it.
What do you know about magnets?