XRGB-mini Framemeister [Import]- $330
https://solarisjapan.com/collections/micomsoft/products/xrgb-mini-framemeister-compact-up-scaler-unit-eur-scart-adapter
Monoprice 4-Port Component Switch – $20
https://www.monoprice.com/product?c_id=101&cp_id=10110&cs_id=1011007&p_id=3027&seq=1&format=2
Impact Acoustics 40697 6×2 Component Video Matrix Selector – New $160 – Used $40-$80
https://store.cablesplususa.com/40697.html
or check ebay for used ones
https://www.ebay.com/sch/i.html?_odkw=Impact+Acoustics+40697&_osacat=0&_from=R40&_trksid=m570.l1313&_nkw=Impact+Acoustics+40697&_sacat=0
gcompsw v1.1 Component / Composite automatic 4:1 switch – gretrostuff.com – $100
http://www.gretrostuff.com/store/gcompsw-v1-0/
SCART Switch Info:
http://retrorgb.com/scartswitches.html
SCART Cable Source:
https://retro-access.com/
Bandridge SVB7725 5-port Manual SCART Switch – Around $30
https://www.ebay.com/itm/162305799199
or
http://www.retrogameking.com/Bandrige-5-Way-Scart-Selector-SVB7725/en
gscartsw_lite – gretrostuff.com – $180
http://www.gretrostuff.com/store/pre-order-gscartsw_lite/
Additional Info: http://retrorgb.com/gscartsw.html
Hydra – lotharek.pl – €164 ~ $190
http://lotharek.pl/product.php?pid=171