He's right, Alby Hub is what you are looking for. Don't be lazy and learn how to manage and use it. Is not hard to run it on any PC. You have a simple option to run it with a LDK backend or even phoenixd backend. That will offer you the splicing you are looking for.

From there you can create and manage as many sub-accounts you want and they can use it with Alby Go or Zeus, through NWC. Easy peasy.

Start reading here: https://darth-coin.github.io/wallets/getting-started-alby-hub-en.html