1. if you want to go Intel I5, go for I5 8600k. If not, I would rather pick Ryzen 5 2600 or 2600x.
2. if you wanna play online ego-shooting games like PUBG, CS:GO, etc. I would stay away from WLAN connection. The latency of WLAN is quite bad for gaming. Try to get the networking done via normal LAN cable or PowerLAN. BTW, try to find better and newer WLAN cards, if you still insist on using WLAN.
3. If possible, try to get a M.2 SSD or NVMe, you will reduce your cabling inside the PC and those should run faster too. Get at least 250GB, trust me, you will not like it smaller than 250GB.