This systematic review investigated small-group Tier 2 interventions to improve oral language or reading outcomes for children during preschool and early primary school years. Literature published from 2008 was searched and 152 papers selected for full-text review; 55 studies were included. Three strength of evidence assessment tools identified a shortlist of six interventions with relatively strong evidence: (a) Early Reading Intervention; (b) Lonigan and Philips (2016) Unnamed needs-aligned intervention; (c) PHAB+WIST (PHAST)/PHAB+RAVE-O; (d) Read Well-Aligned intervention; (e) Ryder and colleagues' (2008) Unnamed Phonological Awareness and Phonics intervention; and (f) Story Friends. Investigation of intervention componentry found common characteristics included 3-5 students, 4-5 sessions per week, minimum 11-week duration, content covering a combination of skills, modelling and explicit instruction, and trained personnel. Shortlisted interventions provide a useful foundation to guide further interventions and inform educators and policymakers seeking to implement effective evidence-based interventions in the early years of schooling.