We recommend you to use Elly Wallet (elly.com), a mobile custodial wallet (Android, iOS).*
All other crypto wallets/services with SLP support:
Disclaimer: We do not guarantee the safety or proper functioning of any application or service listed above. We strongly advise you to create a backup (if applicable) and take any necessary safety precautions when using these applications and services.
Currently, no hardware wallet (Ledger, Trezor, VaultBC, etc.) supports SLP tokens.