Hi,

Here are some references on this topic:

Xue H, Wang Z, Tan Y, Yang H, Fu W, Xue L, Zhao J. Resting-state EEG reveals global network deficiency in dyslexic children. Neuropsychologia. 2020 Feb 17;138:107343. doi: 10.1016/j.neuropsychologia.2020.107343

Jäncke L, Alahmadi N. Resting State EEG in Children With Learning Disabilities: An Independent Component Analysis Approach. Clin EEG Neurosci. 2016 Jan;47(1):24-36. doi: 10.1177/1550059415612622

Jäncke L, Saka MY, Badawood O, Alhamadi N. Resting-state electroencephalogram in learning-disabled children: power and connectivity analyses. Neuroreport. 2019 Jan 16;30(2):95-101. doi: 10.1097/WNR.0000000000001166

Chiarenza GA. Quantitative EEG in Childhood Attention Deficit Hyperactivity Disorder and Learning Disabilities. Clin EEG Neurosci. 2021 Mar;52(2):144-155. doi: 10.1177/1550059420962343

Fernández T, Harmony T, Fernández-Bouzas A, Díaz-Comas L, Prado-Alcalá RA, Valdés-Sosa P, Otero G, Bosch J, Galán L, Santiago-Rodríguez E, Aubert E, García-Martínez F. Changes in EEG current sources induced by neurofeedback in learning disabled children. An exploratory study. Appl Psychophysiol Biofeedback. 2007 Dec;32(3-4):169-83. doi: 10.1007/s10484-007-9044-8

You can write to the authors. As such datasets are few in this area.