Tensei Kenja no Isekai Life: Dai-2 no Shokugyou wo Ete, Sekai Saikyou ni Narimashita

Isekai anime with summoner class MC. 

Similar OP protag, very similar opening episode with the death rain / flame of demise spell. Both protags try to protect their identity  

Incredibly fun and god tier anime with a bland but ridiculously overpowered MC 

Both shows are Isekai's where the MC is a tamer who has a lot of slimes at his side, helping him with a lot of different tasks. Although they take very different approaches from here. My Isekai Life is your standard OP Adventurer MC protecting a town with the help of his slimes and his magic disposal while By the grace of the gods is more of a slice-of-life where the young MC settles in a town doing some mundane tasks and ends up opening up a laundry, using the slimes to wash off al the grimes from the townspeople's clothes. 

This anime is recommend just to Isekai fans This anime is very Similar to i've been killing slime for 300 years but a bit Underatted and A character Slime is More of them in This anime Yuji Not Hunter slime but Yuji like to Hunter Monster and in addiction Yuji not Monster hunter but he is Tamer not like MC others isekai anime in Tensei kenja no isekai life No Comedy In 23 Minutes just Adventure,Action already in 23 Minutes but in I've been killing slime for 300 years all episode Contain Comedy and Adventure more them and do you know Yuji is MC OP and very Underatted and the strongest but not much MC OP : 8/10 Strongest : 9/10 Rate : 7/10 read more 

Both future a more chilled and laid-back MCs with OP powers.  

both Protagonist has cute Talking slimes and wolf as a familiar  

both Mc are strategist and introverted thinker and also the use of the floating pop up menu interface for casting magic and intercom ability with all the subjects in his personal network. 

Isekai anime with op mc, one has slime mc while other has slime "pets" 

Both shows feature the main character travelling from place to place and experiencing different things. Although Kino no Tabi is more leaning to the philosophical side of things while Kenja no Isekai Life mostly on the Fantasy. I feel like if you enjoy one of these shows you might enjoy the other!