Persistent peers drain resources and hurt validator nodes. Use them only from trusted sources like your own sentry nodes. Seed nodes are the way to go for bootstrapping: they fill up your address book and keep you from missing blocks. We've got a seed node for union-testnet-9 if you need one.
sed -i -e "s|^seeds *=.*|seeds = \"3c7a29b62a48cc31b3049dff565c59308d9bfe8c@union-testnet-rpc.tienthuattoan.com:17156\"|" $HOME/.union/config/config.toml
live peers (9)
Peer lists can be used to sync a node as an alternative to addressbook files. Here is a list of 9 active peers as observed by TTT's state-sync server in real-time. Add them to your config.toml if you have trouble finding peers.