Bulk Collection Sell Advice

Hi everyone, I apologize if this isn't the right place to post, it just seemed the most logical place. I'm in the process of cataloging my collection to the Collectr app as I'm debating on selling it all and giving up the hobby, unfortunately. Between prices, stock issues, scalpers, and more, it just isn't fun for me anymore.

I'm just looking for some general information about bulk selling and any information on the best way to go about it and any recommendations on where to advertise something like that safely, as well as any other information you all have about this process as I'm new to selling. I could probably piece it out too, but it would be easier and possibly faster to offload it all at once, even if I take a hit to the total price.

Thank you all very much for reading and any assistance, I greatly appreciate it!