Emphasizing the "Tie" sound:
* Tie Hee
* Ty Hee
* Tye Hee
Emphasizing the "Hee" sound:
* Tie He
* Ty He
* Tye He
Other options:
* Tie-Hee
* Ty-Hee
* Tye-Hee
Ultimately, the best way to spell the name is up to you! Choose the spelling that best reflects the sound you are aiming for.