Resource for making candy crush/slay the spire like level map

I am currently making single player CCG game with cgg kit. I want to make level maps with this pack:
https://assetstore.unity.com/packages/3d/props/exterior/polygon-mini-fantasy-pack-96800

The level map will look like candy crush but it will be randomly produced like slay the spire. Everytime player finishes the game he/she will see different levels. Is there any starting point you can advise? It could be tutorial, blog post or game kit. I used mad level manager in my first game but its deprecated and I could not find a high-quality kit that will fit my game. I also don't want to start without any guide because i can only implement this very poorly and unextendable with my coding skill.

 

There is a Treehouse course about a frog jumping and a follow camera. It can help you to start placing content and understanding how to move the player. How to make a game
Also look the Unity video courses about Unity User Interface UI it will help to your CCG game [link]
As well as the unity Projects: https://unity3d.com/learn/tutorials