charizard, blastoise, venusaur, pikachu, raichu, butterfree, beedrill, nidoqueen, pidgeot, raticate, persian, ninetails, arcanine, golduck, machamp, poliwrath, vaporeon, flareon, snorlax, alakazam, gengar, scyther, kangaskhan, chansey, aerodcatyl, clefable, wigglytuff, sandslash, muk, venomoth, dewgong, lapras, arbok, marowak, magmar, gyarados, pinsir, ditto, electabuzz, lickitung, mr.mime, slowbro, rapidash, rhydon, mew, mewtwo, dragonite, jynx, golem, articuno, moltres - kanto (all female)
typhlosion, meganium, feraligatr, espeon, umbreon, slowking, politoed, plioswine, miltank, scizor, houndoom, ursaring, heracross, donphan, stantler, tyranitar, suicune, raikou, entei, ho-oh, lugia, celebi, blissey, smeargle, ariados, ampharos, bellosom, xatu, azumarill, quagsire, aipom, misdreavus, girafarig, dunsparce, granbull, sneasel - johto (all females)
sceptile, blaziken, swampert, swellow, beautifly, mightyena, linoone, gardevoir, manectric, kecleon, altaria, milotic, salamence, tropius, armaldo, slaking, torkoal, camerupt, hariyama, aggron, pelipper, exploud, delcatty, absol, flygon, mawile, sabeleye, medicham, illumise, roselia, grumpig, spinda, zangoose, seviper, banette, kyogre, groudon, rayquaza, latias, deoxys, jirachi, gorebyss, walrein - hoenn (all females)
infernape, empoleon, torterra, staraptor, bibarel, kricketune, vespiqueen, purugly, luxray, roserade, rampardos, bastiodon, wormadam, pachirisu, gastrodon, floatzel, honchkrow, mismagius, lopunny, garchomp, lucario, hippowdon, abomasnow, glaceon, leafeon, toxicroak, weavile, lickilicky, rhyperior, tangrowth, electivire, magmortar, frosslass, togekiss, yanmega, gliscor, mamoswine, cresselia, mesprit, giratina, dialga, palkia,shaymin, arceus - sinnoh (all females)
serperior, emboar, samurott, liepard, watchog, simipour, simisear, swanna, leavanny, unfezant, zebstrika, seismitoad, liligant, krookodile, audino, scolipede, whimiscott, scrafty, zoroark, cincinno, gothitelle, sawsbuck, beartic, haxorus, galvantula, mienshao, hydreigon, mandibuzz, reshiram, zekrom, kyurem, virizion, meloetta - unova (all females)
delphox, greninja, talonflame, vivillion, pyroar, pangoro, gogoat, florges, aurorus, tyrantum, furfrou, meowstic, dragalge, aromatisse, sylveon, goodra, gourgeist, noivern, xerneas, yveltal, diancie, magearna - kalos (all females)
decidueye, incineroar, primarina, ribombee, oriocorio, lycanroc, mudsdale, araquanid, lurantis, salazzle, bewear, tsareena, golisopod, kommo-o, tapu lele, tapu fini, pheromosa, naganadel, lunala, nihilego, necrozma, zeraora - alola (all females)
rillaboom, cinderace, corviknight, thievul, dubwool, sandaconda, hatterene, grimmsnarl, alcremie, frosmoth, indeedee, dragapult, zacian, zamazenta, urshifu, zarude, glastrier, spectrier - galar (all females)
yea i know you wanted males and females, but i ain't into male slash, so i didn't list any males.
wouldn't be opposed to ash fucking some hot human women, or him and his female pokemon having sex with female humans.
for example, ash x delia x pikachu, or ash x cynthia x nidoqueen or something would be hot as fuck