[quickthrower2]

I have recently put together a list places to buy an app, mostly sourced from [1]

    https://microacquire.com/
    https://flippa.com 
    https://www.motioninvest.com/
    https://investors.club
    https://indiemaker.co
    https://feinternational.com/sell-your-website/
    https://empireflippers.com/
    https://exchangemarketplace.com/
    https://helloexit.com/
    https://www.microacquisitions.com/
    https://www.bizbuysell.com/
    https://www.sideprojectors.com/
    https://onfolio.co/
    https://zeroacquire.com
    https://arraycapital.com
    Microns.io
    Duuce.com
    https://www.facebook.com/groups/flippingwebsites/
    northboundgroup.com
    websiteclosers.com
    https://nanoacquire.vercel.app/
    https://www.bitsfordigits.com/ 
    https://acquirebase.com/

As a buyer, most of these are not so good, and I am only using microacquire. (reasons: too few listings / all listings are just Amazon affiliates / buggy / no one replying).

Not sure on the seller side, but I think microaquire + indiemaker + sideprojectors would be a good combination of places to list.

[1] https://www.indiehackers.com/group/business-for-sale

Also unsolicited advice: you app looks cool, but I only saw it in the wiki! Put a big wide hero style screenshot on the home page.