I do something similar, use an open source service called addy.io, bought a domain but you can also use their domains too, and each website has a separate login i create through bitwarden with the addy integration.
addy.io and proton pass are both great, affordable options. (Proton pass has a built in hide-my-email feature that supports custom domains)
addy.io and proton pass are both great, affordable options. (Proton pass has a built in hide-my-email feature that supports custom domains)