Here's a list of orphaned blocks: https://bitcoinchain.com/block_explorer/orphaned

If you think mining pools are too centralized, you should require more confirmations for your txns, when possible.

If you operate a LN node, you can set the min required blocks before a channel becomes active, for example.

If you operate an economic node (like a bank or business) you can require more confs before delivering the merchandise or crediting the customer's account.

Unfortunately, you cannot easily require more confirmations as a user requesting withdrawals from an exchange. Maybe your widthdrawl is included in a block that immediately gets reorged or orphaned. Your widthdrawl tx is no longer included in any block nor the mempools at this point. Your only recourse is to plea to the exchange and hope that they recognize the validity of the reorg and re-issue the widthdrawl tx in your favor.