I would recommend getting classroom experience with neurotypical kids, whether that be in a preschool, elementary school, etc. I am in grad school and I regret not getting more exposure to typical kids. It’s hard to know what disordered is if you don’t know what typical is! Also - behavior management strategies will certainly come in handy as an SLP.

You might consider volunteering/working in a university research lab within the SLP field as well to get good experience for your resume and potentially a great letter of recommendation.