@all if you only want to save the BTC addresses of the respective coins and then check whether a foreign transaction has taken place on this address, then i would recommend sentinel, which was even released today in the new 5.0.0 version.
You can now add and manage public keys in different Collections, allowing you to view the transaction history and balance of a whole Collection while still having the ability to do the same for individual public keys.
https://blog.samourai.is/sentinel-v5-0-0/https://samouraiwallet.com/download/sentineli have been using sentinel for over a year and am very happy with it. it keeps track of all my BTC addresses that appear in my entire ccc collection

Thanks cygan & all.