How was your experience buying a SaaS company/service from a platform?

I am currently checking out various SaaS marketplaces to maybe buy a company. Has anyone made good experiences on a certain platform? I checked out the following: - https://microacquire.com/ - https://empireflippers.com/ - https://digitalexits.com/listings/ - https://feinternational.com/buy-a-website/ - https://www.sideprojectors.com/#/ - https://quietlight.com/listings/ - https://latonas.com/ - https://www.flippa.com/

Are there other marketplaces you would recommend (implies you bought something successfully)?