There are a lot of resource on Google to find yourself deep explanations


Blockchain Architecture Analysis: Private vs Public vs Consortium
https://hackernoon.com/blockchain-architecture-analysis-private-vs-public-vs-consortium-65eb061b907b

Types of Blockchains & DLTs (Distributed Ledger Technologies)
https://blockchainhub.net/blockchains-and-distributed-ledger-technologies-in-general/

In-depth on differences between public, private and permissioned blockchains
https://medium.com/@lkolisko/in-depth-on-differences-between-public-private-and-permissioned-blockchains-aff762f0ca24

Google told me there are 20 700 000 résults