找名字：Name Search

First step - finding a compatible surname.  You might pick one that sounds like your English last name.  Or you can pick based on the meaning of the character.

You can investigate the most common family names (surnames) and their meanings: here

Here's a very good tool to help you explore a given name that suits you: here
And another: here

This tool also provides several options: here

There's also the classic phonetic way (transliteration) for a foreigner to convert their name to Chinese: here

Lastly, I'd like to share a nice blog post by ChinesePod superstar Jenny Zhu on the nature of Chinese names: here