Casual Runner Looking for Shoe Recommendations for a Marathon

27m looking to run my second marathon this year. Ran one previously (7/8 years ago) and did them in Nike Pegs and have stuck with them ever since. Is that sort of shoe designed for that distance? Since i started regularly running that has been my shoe of choice. If not what sort of shoe should I look for.? Targeting a 4:30 time so would consider myself a casual runner so don't need any high tech shoe.