While learning STRIDE is great for mnemonic purposes, finding other sources of risk patterns can be beneficial if they are relevant to your systems and organization. LINDUNN is definitely a goto for privacy, but many other detailed threat and attack collections exist.

I would keep all those references as ways of learning about threats, but not something you would be basing your threat modeling contribution solely on.

Trying to follow lists too strictly might hinder your ability to wander around while brainstorming.

On the individual level, threat modeling itself requires a certain flow state that would be better achieved by tapping into your inner self and knowledge about your organization systems and situation. On a group level, this would add some randomness to the results, as all people are different. This is a great argument for the need for diversity of function in a threat modeling exercise.

Your memory collections, your own model, is what differentiates you from other participants.

Simply tap in your strengths, your interests; Tap into your individual recent experience; 

• What posts have you read lately that captured your attention? 
• What insider knowledge do you have of things that went wrong in the past? 
• What do you feel you understand the best and would teach others?

You could also also tap into your weaknesses, blind spots; Use your external resources; 

• What do you understand less and would like clarification? 
• What did you miss at the last security related meeting? 
• Is there a security expert you have access to?

Remember that ignorance can lead to great findings, especially when you seek to fill it.