I’m new to the reefing hobby although Ive has countless freshwater tanks since I was 6 lol. I was having the same dilemma as you a few months ago. I decided to go the DIY route on an AIO tank and I am loving it! Ive easily saved a few hundred dollars by building my own tank rather than buying a full. For someone who doesn’t have the DIY knowledge or would just prefer to buy a tank I would go with Red Sea if it’s in your price range.