Take a look at the Currency exchange board. Many reputable trusted users are doing small to medium trades out there However, it is always recommended to use an escrow. Here an updated list of them provided bu user Financisto: ⛓LIST⛓ BitcoinTalk's Escrow Providers: Ranking & Blacklist ☠ Avoid Scammers ☠ Check recent comments for more updates as OP isn't active since last December, as you can always check the reputation of the escrow according to his trust page and activity.
Now that you already have a bitcointalk account, you just need to read the Currency Exchange rules and guidelines.
Hope this can help you. Good Luck
the problem is that he wants to BUY bitcoin with Paypal not sell to it. which means the seller (can be trusted member here) is giving him an irreversible money (ie bitcoin) while him without any prior history is giving the seller an easily reversible money (ie. Paypal). i don't think anybody is going to go for that.
but i found there is one thread that provides that the customer can buy a bitcoin using PayPal
here the thread: ★★★ BUY HERE 🔥 BITCOIN 🔥 WITH Your PAYPAL ★★★ Quick and Easily 🌟
if you take a look at his transaction history and it looks like he already has done many transactions before
Thank you very much, it's very helpful