Bitget exchange is legit, but it is good to use the original site:
https://m.bitget.com/register.html?random=3180If you want to know that any exchange site is legit or not, you can use coinmarketcap for it either through the site or through the app. Search for any exchange you are looking for just like you are searching for coins using the search engine in the site. If you do that you will see that bitget is a legi lt exchange.