Here are some options you could consider:
* Using a similar-sounding French name: You could choose a French name that sounds similar to Shane, like "Sean" (pronounced "Shawn").
* Translating the meaning: If Shane has a specific meaning, you could try translating that meaning into French. For example, if Shane means "God is gracious", you could use a name like "Grégoire" or "Benoît".
* Using a phonetic spelling: You could try to spell Shane phonetically in French, using a combination of French letters that sound similar. This might result in something like "Chane" or "Schenne".
Ultimately, the best way to spell Shane in French depends on the context and your personal preference.