What are easy and trustworthy options and tips?
Well, I see you have already been given some useful guaildlines on how to start your Bitcoin Journey. However, all you need to do now is to stick to it, but always have it at the back of mind that Bitcoin investment is not a get rich quick scheme is always required time and patience and also remember to invest the amount you can afford to lose because it is always a long term process before you would be able to get something from it.
The question focuses on him purchasing BTCs.
In adherence to the question asked, I suggest that you first check if your country has a local exchange to which they advertise. If you do have a local exchange available, you can submit your KYC documents and purchase cryptocurrencies directly from that platform. On the other hand, I would advise to purchase BTC in Binance through a peer-to-peer transaction that is heavily regulated and monitored by their website.
Lastly OP, your question has been answered several times in this forum already. If you just utilized the search bar, then you would find your answer instantly. Lastly, you can also do a quick google search to a simple question you just asked.