Basic/noob self custody setup would be something like OPENDIME or SATSCARD. While playing around with software seed+passphrase.

Required self custody setup would be hardware wallet generated/or dice generated seed+passphrase. COLDCARD, Passport, Jade, and SeedSigner are top-notch options.

Redundancy/multisig self custody setup for those who want to keep seed phrases/hardware in separate locations. Making it harder to spend funds without serious intent.

ALL of these require that the seed phrases AND hardware be properly stored and secured.

#Bitcoin teaches responsibility.