All of them are okay in daily conversation.
Add another two in spoken Chinsese:
打个比方,...
举个例子 , ...
比 有举例的意思
如 也有举例的意思
实际口语中,差别不大
比如说……
比方说……
好比说……
如果说,我也……
譬如这类问题……
例如我有一次就……
举例,曾经我……
就好像,曾经我……
In a word, these four are extremely similar to each other.
The formal ones 譬如>例如>比如
The casual ones 比方说
Hope that’s helpful. J