Farfetch currently has more than 3,900 pieces of beachwear and swimwear for women and 1,700 for men. For women, you'll find more than 1,200 one-pieces, 2,100 bikinis, and 200 cover-ups, and for men, there are 350 pairs of swim trunks and 1,700 pairs of board shorts.

The selection of brand name swimwear is good. For men, there are 230 boardshorts and swim trunks by brands like Vans, Billabong, Hurley. For women, there are 700 swimwear products here.

Shein has over 7,400 pieces of swimwear for women, 1,800 pieces for men, and 1,600 for kids. This includes over 2,500 items of plus-size swimwear for women, about 850 one-pieces, and 5,200 bikini sets.

There are about 50 plus-size swimwear items for women at this online store. This includes 20 one-pieces and 20 separates. It is advertised as not only plus-sized but also flattering.

There are over 1,500 swimsuits for women, including bikini, cover-ups, and one-pieces. There are over 560 products for men, including board shorts and swimwear. Some of the products will also be on sale.

Lahana Swim has a beautiful selection of bold, exotic bikinis for women that are made to make the wearer feel emboldened and empowered. This includes several styles of tops and bottoms that you can mix and match, or buy in sets.

Intermix has a nice selection of designer swimwear for women from labels like Cult Gaia, Onia, and Missoni Mare. This includes a variety of one-piece swimsuits, bikini tops, bikini bottoms, and cover-ups.

Mr. Porter has 340 pieces of designer men's swimwear from designers like Versace, Givenchy, Fendi, and Alexander McQueen. This collection includes 130 plain swim shorts, 180 printed swim shorts, and more than 20 designer towels.

Shop for swimwear for the whole family at Kohl's, where you'll find 1,400 pieces for women, 580 for men, 280 for teens, 110 for boys, and 150 for girls. In the women's section, there are 390 one-piece swimsuits, 430 tops, 330 bottoms, 160 cover-ups, and 50 swimsuit sets.

Shoptiques has a large selection of swimwear and bathing suits for women from a variety of boutiques and designers. This includes many one-pieces, bikinis, and cover-ups in a variety of styles, colors, and prints.

Soma has more than 220 pieces of swimwear on its site, from size XS to 1X in several styles, prints, and colors. This includes 70 tankinis, 20 bikinis, 50 bottoms, 60 one-pieces, 17 skirts & swim dresses, and 16 cover-ups.

Over 50,000 swimwear items for women, including over 5,000 bikinis & sets, 3,000 one-piece swimwear, and almost 2,000 cover-ups. For men, the selection is not as good with a total of just over 4,000 items.