Lack of knowledge isn't ignorance (imo ignorance is when actively ignore something) :-D
With that said.
TOSEC is a database of registered software only. In daily speak it can mean both the database and the collection.
The collection (images in shape of software disks/cd's/roms, i.e. ADF and ISO's) itself isn't part of what we distribute, we just catalog and distribute this database.
Archive.org has the TOSEC collection (though somewhat older) on their website.
https://archive.org/details/tosecmore specific for your amiga question
https://archive.org/details/Commodore_Amiga_TOSEC_2012_04_10They also have some online way of playing Amiga games, though they are not perfect yet. I don't remember the URL atm.
While distributing this is a grayzone, I may believe that archive.org is the only place I legally can link to.
Since you've gotten your interest in the Amiga back, I can recommend that you take a look at
English Amiga Board forum.
if you lookup Romvault on youtube there are some videos on how to maintain TOSEC database/collection. Clrmame is also a tool you can use for that, I prefer RomVault though.