For midsized top tier shows shows:
- Steins;Gate (which you already watched, good good)
- Code Geass
- Full Metal Alchemist
- Mob Psycho
- Death Note (beginner friendly)
- Food Wars (slightly ecchi, not beginner friendly)
Still going on:
- One Punch Man (hilarious, easy watch)
- Bungo Stray Dogs (you'll love it if you know a bit about literature)
- Undead Murder Farce (new, detective anime, still going on)
For sad slice of life:
- Your Lie in April
- Clannad
- Fruits Basket
- Re Life
Isekai (transported across worlds):
- That Time I Got Reincarnated as a Slime (surprisingly good)
- Campfire Cooking in Another World with My Absurd Skill
- Mushoku Tensei (slightly echhi)
These are off the top of my head