Metamask

Avalanche - https://support.avalabs.org/en/articles/4626956-how-do-i-set-up-metamask-on-avalanche​

Polygon (Matic) - https://docs.matic.network/docs/develop/metamask/config-matic/​

Fantom - https://docs.fantom.foundation/tutorials/set-up-metamask​

Huobi Eco (HECO) - https://docs.hecochain.com/#/en-us/wallet?id=metamask