Hi,

May be some of these articles and its cross-references be of help to you:

Newson JJ, Thiagarajan TC. EEG Frequency Bands in Psychiatric Disorders: A Review of Resting State Studies. Front Hum Neurosci. 2019 Jan 9;12:521. doi: 10.3389/fnhum.2018.00521. PMID: 30687041; PMCID: PMC6333694.

Rachamanee, S., Wongupparaj, P. Resting-state EEG datasets of adolescents with mild, minimal, and moderate depression. BMC Res Notes 14, 256 (2021). https://doi.org/10.1186/s13104-021-05673-x

Wu C-T, Huang H-C, Huang S, Chen I-M, Liao S-C, Chen C-K, Lin C, Lee S-H, Chen M-H, Tsai C-F, Weng C-H, Ko L-W, Jung T-P, Liu Y-H. Resting-State EEG Signal for Major Depressive Disorder Detection: A Systematic Validation on a Large and Diverse Dataset. Biosensors. 2021; 11(12):499. https://doi.org/10.3390/bios11120499

https://arxiv.org/ftp/arxiv/papers/2002/2002.09283.pdf

Some sites:

https://github.com/mastaneht/SPIS-Resting-State-Dataset

https://openneuro.org/datasets/ds003775/versions/1.0.0

https://www.researchgate.net/post/Publicly_available_EEG_resting_state_data

check this out:

https://physionet.org/about/database/