Bitcoin

P2P Trading: https://hodlhodl.com/?filters%5Bcurrency_code%5D=EUR

Indicators:

https://www.bitcoinmagazinepro.com/charts/pi-cycle-top-indicator/

https://www.bitcoinmagazinepro.com/charts/mvrv-zscore/

https://charts.checkonchain.com/

Hardware Wallets:

https://www.blocktrainer.de/kaufen-und-anbieter/hardware-wallets

https://store.coinkite.com/store

https://foundation.xyz/

https://shop.ledger.com/de

Cashback:

https://satsback.com/

BTC Heater:

https://21energy.com/

BTC Mining:

https://terahash.space/

Nostr:

https://nostr.com/

BTC Event:

https://btcprague.com/partners/