Any fi products I should apply for before I turn 30 to get the best deals?

Insurance

Besides insurance, the cost of other financial products are not age dependent (still, the earlier you buy, the longer your time horizon). The key insurance plans are (a) hospitalisation plan, (b) critical illness plan, (c) term and (d) whole life insurance. I followed this guide when getting my insurance when I graduated last year, maybe it will be helpful for you too!

Insurance

Insurance coverage is better done early.