Which DEADLIFT works my lower back? Please Help :( ?

Well, I was at the gym yesterday, (wanting to attempt my first deadlift) And so I asked a personal trainer to help me do a deadlift for my lower back, N he told me about the *Romanian Deadlift* N showed me how to do it. N after I did this deadlift, MY back is sore the next day, but when I read online, it sayd thAT *Romanian deadlifts target the hamstrings and glutes...* I'm very confused, I want a deadlift that can work my lower back. PLEASE HELP
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You know what, I'm just never going to do the deadlift ever again, I'm getting all kinds of different answers.
Which DEADLIFT works my lower back? Please Help :( ?
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