Both おとずれる and たずねる mean to visit, however there is a nuance. Both of them sound formal, so in a casual conversation, おとずれる or たずねる seem unnatural. Instead, we tend to use the verb “to go”. Therefore if you would like to sound natural, I recommend you to use ‘行く (いく・to go)’. 訪ねる（たずねる） 1. Visit …
