Looking at getting in to Multigun

As the title says, I'm thinking of getting in to multigun competitions for fun.

I currently have a 9mm that would work for the sidearm (would undoubtedly want to replace it down the line, but for now it'll work).

I'm looking for rifle suggestions. I've been looking around and trying to find one to fit my budget. I'm preparing to spend around $1200ish (can go up or down), with all the attachments I'd want for a competition like that, such as sling, optic, possible foregrip (thinking angled).

Obviously I'm new to this, so any and all suggestions and recommendations (attachments included) would be great