supposing you have already seen the classics and everything pre 2019, here are some good animes from the last ~8 seasons
slice of life + isekai/fantasy:>Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen>Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta>Shinchou Yuusha: Kono Yuusha ga Ore Tsueee Kuse ni Shinchou Sugiru>Itai no wa Iya nano de Bougyoryoku ni Kyokufuri Shitai to Omoimasu>Watashi, Nouryoku wa Heikinchi de tte Itta yo ne!>Princess Connect! ReDive>Endro~!
slice of life:>Watashi ni Tenshi ga Maiorita!>Houkago Teibou Nisshi>Jashin-chan Dropkick>Machikado Mazoku>Koisuru Asteroid>Yuru Camp△>Kakushigoto
note that I willfully excluded most normgroid shows like kaguya, ishuzoku and the like.
in case you haven't seen all the important pre 2019 titles, check the following studios for quick reference:>Ajia-Do>Doga Kobo>Project No9>Studio Deen>Kyoto Animation
and check for adaptations of Manga Time Kirara's titles, as they are probably what you are looking for.
finally, a personal recommendation if you enjoy 90's anime: Heppoko Jikken Animation Excel♥Saga