EthStaker

I need router suggestions and maybe a beginners link how to set my network up properly - my internet is kinda slow due to my nodes 😇

Is easy or cheap your main concern? Tough to get both. 

For cheap I'd recommend an asus router which is compatible with asuswrt-merlin.  i love it; has tons of advanced features for firewalls, vlans, multiple wifi zones (IoT, guest, etc). 

For easy, IMO the ubiquiti unify series is most power to ease of use.

All you need is the ability to forward some ports, which is pretty standard in any router.  That said, a good router is nice to have, especially if you want to have multiple wifi access points. I’m happy with my UniFi

co-founder of casaliz.co.jp, work in software/embedded/VR, interested in learning ethereum protocol and L2 development, farcaster.id/hosaka

I rent the router of my ISP. Mabe it could be bandwith but the data seems to come through but with time delay?
Never have problems with video playback over LAN but Wifi is so slow.

What are you using right now? And are you sure the router is the actual bottleneck and not the ISP itself?