Rougo ni Sonaete Isekai de 8-manmai no Kinka wo Tamemasu

Two MC's who are able to teleport from Earth to their Isekai worlds whilst bringing in goods from Earth in order to make money, both characters studying something, whether it's combat or magic, in order to assist them on their journeys. There is a fair lot of action between the two whilst both MC's meet an array of people on the way. Perhaps the biggest difference is that Rougo is more focused on its Isekai setting as opposed to Sasaki where there is a balance between the two worlds. 

Using teleport to isekai to make money by selling japanese goods 

Our MC's have the hability to travel from one world to another and they want to acquire gold by selling normal articles here who are very complex in comparation with the technology from the world of magic and fantasy. They are a good entertainment. 

- Both MC can travel back and forth from Earth and the isekai fantasy world - Both MC sell modern Earth consumer goods to isekai world for gold to exchange for Earth currency - Both have isekai denizens amazed by the Earth goods, attracting the attention of nobles and royalty - Both MC start getting entangled in economic politics, and political politics. - Both animes has firearm usage "Saving 80,000 Gold in Another World" follows these premises a lot more, is more character and comedy driven, and actually goes somewhere by the end of the season. Whereas "Sasaki and Peeps" threw in a lot of mismatching things which deviated everything from these premises quite often, thus never really delving too deep into things nor characters, and the season ended feeling like it never really went anywhere, and also on a cliffhanger.  read more 

Both main characters come to new world and introduce the world to new earth items. Bookworm is much more focused on the slow realistic progression whereas Retirement is focused on the wow factor. Both are great series! 

Both involve the MC being transported into another world. Both slowly introduce technology from the modern world to their current world, with causes tsunmai-sized shockwaves across their current world  

The protagonists of both series are similar in personality and come to the same logical conclusion (to make a living off of Earth technology) as well as following the same path in life, what differs them is their circumstances and thus how easily they accomplish their goals: Myne only has her memories from Earth to rely on, other than that she's just a sickly peasant child kept alive by willpower alone. The nobility are cruel and aloof, and every inch of progress is hardfought. Mitsuha has the ability to teleport anywhere she pleases, able to acquire any Earth product she likes without making it herself, and most of the people she meets are kind and generous. So, in short it's like a speedrun of Ascendance of a Bookworm. Progress is made not by the inch, but by the mile, with Mitsuha having the leeway to really splurge and go wild. Saving 80,000 Gold certainly isn't as sophisticated or memorable a series, but the contrast to its sophisticated counterpart makes it a lot of fun IMO. read more 

Cheeky Japanese adult girl gets isekaid and spreads chaos through fantasy lands with her modern knowledge and endless supply of OP items she can sell or use. MCs have similar approach to problem solving: I can`t reveal my powers to anyone, or I`ll be in danger... Ooops, I did it again, lol :3 Both are stories by FUNA (who also wrote Didn't I Say to Make My Abilities Average in the Next Life?!) 

Kaoru is basically Mitsuha minus teleportation plus potion making; Their personality is basically the same save for very few differences and preferences, and if you enjoy one, you'll DEFINITELY enjoy the other. They're creations from the same author, who consistently likes the same tropes for all his other works, so there's that too. 

Moving between the real world and the world of fantasy .. Bringing advanced products to people in the Middle Ages .. Fighting with heavy weapons against creatures such as goblins and dragons .. The difference is that only one person can move between the two worlds (the heroine) and not a portal that connects the two worlds as in (Gate)  

Both main character comes to new world an introduces the world to new earth items. Both eventually ends up fighting in a war and using Earth weapons to fight in the war. 

- Both MC's are cute girls trying to run a shop in a fantasy world, and are concerned with money. - Both MC's are capitalistic, intelligent, a little schemie but with a heart in the right place, and have no reservations when it comes to self-defense against bandits. - Both involve economics, business practices and partners, and the problems of rival competition, and scammers. - Both show the improvement of the quality of life for the local residents due to the MC's business. - Both MC's attract the attention of the local governments, and start coordinating with them. - Both MC's attract cute girls who befriends them, and are cute. - Both MC's hire adventurers desperately looking for work to help with her business, and they become her friends. - Don't mess with either MC, they'll wreck you. Both had people who tried to mess with the MC's and got wrecked.  read more 

both of them get things from japan and introduce it to another worlsd